Fix build path,

So Android Project correct links to CORE project
Minor re-factoring of ProfileReader
Removed unused implementation of Serializable on parameters classes
Cleaup unused import and constant
Add default case to missing in some DroneEvent switch statements
Remove unused imports, methods and variables
Fix deprecation problems, by using newer layout parameters and by ignoring one instance of SlidingDrawer
Remove 'implement serializable' where it's not needed.
Fix possible memory leak
Remove more unused variables/constants
Fix remaining lint warnings by adding '@SuppressWarnings' statements
Let's leave version control to GIT

Removed all @since and @author tags
Merge pull request #939 from arthurbenemann/lint_cleanup

Cleanup of lint warnings