Add files for home fragment.
Add ViewPager to home screen
Add home tabs on home fragment page.
Revert "Add home tabs on home fragment page."

This reverts commit 1464ba0eb42a655876b4a7988928f52ce456c5bc.
Added view pager indicator library
Integrate viewpagerindicator to home viewpager
Separate homepagefragment, implement fragments for each tab
Convert updates tab to listfragment
Separate download async task to document manager class
Fully implemented DocumentManager utility class.
Add page address constants in DocumentManager
Extract updates elements from adu learn site
Combine drawerlist classes
Code cleanup in homepagefragment
Complete updates tab of home page fragment
Set layout heights to wrap content in updates list view
Merge 'feature-c.13' to develop closes #13