Schedule JSON parsing moved to Splash Screen Activity and some schedule layout fixes

Schedule JSON parsing moved to Splash Screen Activity and some schedule
layout fixes
Cleaning code for ScheduleMainActivity as data parsing moved to Splash
Fixed - Progress newsroom dialog dismissal, added Map icon, some layout fixes
Added and Revamped main menu activity screen

-Added and Revamped main menu activity screen and image buttons for
navigation
- Fixed some style changes
Back/Home Actionbar navigation for Newsroom, Maps, Fav Abstracts
Back/Home actionbar navigation for Abstracts and Schedule activity
JSON Parsing moved from Abstracts.java to separate class

New Class AbstractsJSONParse.java for parsing JSON
Removed unused imports from Abstracts.Java
Cleaning Abstracts.java

organizing of comments
Handling JSON Parsing for Abstracts.java in AsyncTask to avoid UI thread blockage

Handling JSON Parsing for Abstracts.java in AsyncTask to avoid UI thread
blockage and performing all json parsing in separate thread instead of
UI Thread
Cleaning AbstractContent.java

Removed imports and extra comments
ActionBar Items Pressed state styling & app launcher icon

ActionBar Items Pressed state styling
App launcher icon and correct naming
Added search icon to Abstracts Search EditText on right side
Loads Dialog notification text from strings.xml
Commenting in AbstractContentTabFragment and cleaning of useless comments
Cleaned AbstractContentTabFragment, removed unwanted imports
Cleaning AbstractCursorAdapter,java

Removed unwanted comments and unwanted code that was used in previous
version, added relevant comments and cleaned.
Separate class now for Schedule JSON Parsing.

As advised , schedule i/o moved to separate class - better practice.
Cleaning SplashScreen.java and ScheduleJSONParse.java

cleaning of unused imports and variables
Cleaned FavoriteAbstracts.java, MapActivity, TabsPagerAdapter

Cleaned unused imports and fixed a variable access