Refactoring, moved views to view package.
Added "three positive things" index card

Added "three positive things" index card.

Also added some new images for usage in list headers.
Merge branch 'index_step3' into development
Removed some temporary code.
Fixed compatibility issues.

Fixed compatibility issues that arose when using Android 4.0 or devices
with lower screen resolutions
Merge branch 'development' into database