Added support to basic filter in users, alphabetic, reputation and
reversead alphabetic. Just to show how it works. Will add more features
to it in next commit.
Fixed a better way to access chosen tags
Merge remote-tracking branch 'origin/FilterByDatesUpdated'

Conflicts:
	GitWarriorSolution/AndroidManifest.xml
	GitWarriorSolution/src/com/example/gitwarriorsolution/MainActivity.java
Introducing SearchPickerActivity.
Code snippets from posts are now italic.
Changes the functionality of the SearchResults to comply with the usage
of SearchPickerActivity.
Fixed the AndroidManifest merging issues which were introduced
yesterday.