getting app ready for release

  * disable settings so that app can be released on play store for now
  * we cannot fix the listview size to any hardcoded integer. 175 is
    is suited best for tablets/1080p devices while 70 is better for 720p
    and smaller phones
add release signing configs
license the app under GPL v3

Signed-off-by: Arnav Gupta <championswimmer@aokp.co>
Frontend of SettingsActivity finished

Signed-off-by: Umair Khan <omerjerk@gmail.com>
add screenshots for uploading to playstore

Signed-off-by: Arnav Gupta <championswimmer@aokp.co>
add properly resized category icons for all dpi

Signed-off-by: Arnav Gupta <championswimmer@aokp.co>
new launcher icon

Signed-off-by: Arnav Gupta <championswimmer@aokp.co>
Added splash screen and white category icons
Change the auto refresh interval on user demand

Signed-off-by: Umair Khan <omerjerk@gmail.com>
resize, rearrange, cleanup of icons

Signed-off-by: Arnav Gupta <championswimmer@aokp.co>
handle splash inside MainActivity
 * earlier method would create multitudes of activities in the stack
 * this way the splashscreen camouflages the empty fragment while news loads
and here we go !!! version 1.0 released
optimize imports
Reload the view on first run of app

Signed-off-by: Umair Khan <omerjerk@gmail.com>

Conflicts:
	App/src/main/java/in/ac/dtu/subtlenews/MainFragment.java
use the fully qualified domain name, as the ip address may change (no guarantee of it being static)