Implement permission change
Fix for contextMenu bbar invisibility

Plus, other permission changes
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/com/amaze/filemanager/fragments/Main.java
	src/com/amaze/filemanager/utils/Futils.java
Custom view for Main fragment
Implement gridView for main fragment
Merge remote-tracking branch 'upstream/master'
Merge pull request #5 from vishal0071/master

Implement gridView for MainFragment