redesigned ProjectActivity
* added necessary pngs
* redesigned bottom bar
added right arrow to list items
split list item layout
into separate xmls
white background for thumbnail img
testDivider removed for now
has to be refactored
fixed bug with checkboxes/arrows
little hack for making headlines not clickable
headline click problem solved
added padding to sprite title
added mdpi images
Merge remote-tracking branch 'origin/master' into ProjectActivity
nearly half way there, major lin layout nesting incoming
Should be nearly final now....minor padding changes incoming.
Merge branch 'master' into soundFragmentRedesign
Merge remote-tracking branch 'origin/master' into ProjectActivity
corrected checkbox padding and added list view tob margin
Merge remote-tracking branch 'origin/master' into ProjectActivity
added tests for sprite list headlines
removed testDivider
transparent thumbnail bg
shadow on list items when checkboxes are visible
text not bold anymore
cleaned up by creating styles, colors and string resources