Here are about 60 lines from the log when I was web browsing, typing this message, and switching between Safari and Google Chrome.
10/1/14 12:48:27.259 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 12:48:50.348 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 12:51:00.000 AM kernel[0]: CODE SIGNING: cs_invalid_page(0x1000): p=2531[ksadmin] final status 0x0, allowing (remove VALID) page
10/1/14 12:51:13.000 AM kernel[0]: CODE SIGNING: cs_invalid_page(0x1000): p=2538[ksadmin] final status 0x0, allowing (remove VALID) page
10/1/14 12:51:30.464 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 12:51:35.752 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 12:53:29.817 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 12:53:32.852 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 12:55:18.317 AM com.apple.WebKit.Networking[276]: CFNetwork SSLHandshake failed (-9806)
10/1/14 12:55:18.319 AM com.apple.WebKit.Networking[276]: CFNetwork SSLHandshake failed (-9806)
10/1/14 12:57:49.484 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 12:57:52.480 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 12:58:14.545 AM Safari[255]: Couldn't contact spell checker for Multilingual
10/1/14 12:58:14.545 AM Safari[255]: Suppressing further spell checker launch failure warnings
10/1/14 12:58:26.671 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 12:58:26.672 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 12:58:26.672 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 12:58:26.672 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 12:58:26.673 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 12:59:06.894 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 12:59:06.895 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 12:59:06.896 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 12:59:06.897 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 12:59:10.595 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 12:59:15.313 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 12:59:15.968 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 1:00:05.318 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:00:05.318 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:00:05.319 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:00:05.319 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:00:05.320 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:00:40.103 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:00:40.104 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:00:40.104 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:00:40.105 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:00:40.105 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:01:29.847 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:01:29.848 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:01:29.848 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:01:29.849 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:01:29.849 AM AppleSpell[292]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
10/1/14 1:01:31.401 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 1:01:34.972 AM mds[37]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1586
10/1/14 1:02:54.000 AM kernel[0]: Sandbox: coreaudiod(183) deny file-read-metadata /Library/Audio/Plug-Ins/Components/Kontakt 4.component
10/1/14 1:02:54.000 AM kernel[0]: Sandbox: coreaudiod(183) deny file-read-data /Library/Audio/Plug-Ins/Components/Melodyne.component
10/1/14 1:02:54.000 AM kernel[0]: Sandbox: coreaudiod(183) deny file-read-metadata /Library/Audio/Plug-Ins/Components/Melodyne.component/Contents
10/1/14 1:02:54.000 AM kernel[0]: Sandbox: coreaudiod(183) deny file-read-metadata /Library/Audio/Plug-Ins/Components/Melodyne.component
10/1/14 1:02:54.000 AM kernel[0]: Sandbox: coreaudiod(183) deny file-read-data /Library/Audio/Plug-Ins/Components/Reaktor5.component
10/1/14 1:02:54.000 AM kernel[0]: Sandbox: coreaudiod(183) deny file-read-metadata /Library/Audio/Plug-Ins/Components/Reaktor5.component/Contents
10/1/14 1:02:54.000 AM kernel[0]: Sandbox: coreaudiod(183) deny file-read-metadata /Library/Audio/Plug-Ins/Components/Reaktor5.component
10/1/14 1:02:54.713 AM launchctl[2571]: launchctl: Couldn't stat("/Library/LaunchAgents/com.oracle.java.Java-Updater.plist"): No such file or directory
10/1/14 1:02:55.403 AM sandboxd[190]: ([183]) coreaudiod(183) deny file-read-data /Library/Audio/Plug-Ins/Components/Flip4Mac WMA Import.component
10/1/14 1:02:55.408 AM sandboxd[190]: ([183]) coreaudiod(183) deny file-read-metadata /Library/Audio/Plug-Ins/Components/Flip4Mac WMA Import.component/Contents
10/1/14 1:02:55.412 AM sandboxd[190]: ([183]) coreaudiod(183) deny file-read-metadata /Library/Audio/Plug-Ins/Components/Flip4Mac WMA Import.component
10/1/14 1:02:55.417 AM sandboxd[190]: ([183]) coreaudiod(183) deny file-read-data /Library/Audio/Plug-Ins/Components/Guitar Rig 4.component
10/1/14 1:02:55.422 AM sandboxd[190]: ([183]) coreaudiod(183) deny file-read-metadata /Library/Audio/Plug-Ins/Components/Guitar Rig 4.component/Contents
10/1/14 1:02:55.427 AM sandboxd[190]: ([183]) coreaudiod(183) deny file-read-metadata /Library/Audio/Plug-Ins/Components/Guitar Rig 4.component
10/1/14 1:02:55.431 AM sandboxd[190]: ([183]) coreaudiod(183) deny file-read-data /Library/Audio/Plug-Ins/Components/Kontakt 4.component
10/1/14 1:02:55.436 AM sandboxd[190]: ([183]) coreaudiod(183) deny file-read-metadata /Library/Audio/Plug-Ins/Components/Kontakt 4.component/Contents