* Core.java: Added a generic function which will serialize given params in order to send an API request.
* PandroidEventviewerActivity.java, PandroidEventviewerService: Refactorized the serialization of parameters (now, they call Core.java function).
git-svn-id: https://svn.code.sf.net/p/pandora/code/trunk@6338 c3f86ba8-e40f-0410-aaad-9ba5e7f4b01f