Do you have a problem or are you simply assuming these messages are the problem?
Jestam events are how iOS is meant to work, as such you cannot stop them (which is probability why this thread is not solved after 2 years). Memory is limited on iOS so it will remove apps from memory as part of it's normal operation.
Your device is also not an iPad running iOS 8, so I can't really see how it is related to this old topic.
For the final time - if you have a problem explain what that is, ideally in your own topic or you can continue to post here & hope some has a better idea, but I don't think these messages are a sign of anything (maybe I am wrong, in which case please enlighten me).