Branching to develop
Merge branch 'master' into develop
Added placeholders for Settings activity.
Moved string resources to default file.
Added subscriptions and filters preference placeholders.
Added application class for global management.
Updated project properties.
Moving preferences reading to a persistent class.
Modifying subscriptions now properly updates filters.
Implemented activity redirection based on preferences.
Subsciption choices are now properly saved.
Updated reference to app logo.
HelperActivity now properly finishes after closing dialog.
Dialog positive button is disabled when there are no selections.
Updated logo background.
Added action bar icons.
Subscription preferences are now shown using an AlertDialog.
Documented SubscribeDialog methods.
Updated menu resources.
Changed theme of preferences activity.