Rename CardsPage to CardsArea

Signed-off-by: Simon Busch <morphis@gravedo.de>
Make card animation duration configurable

Signed-off-by: Simon Busch <morphis@gravedo.de>
Correct indentation within CardGroupListView

Signed-off-by: Simon Busch <morphis@gravedo.de>
Make card sliding animation a bit smoother

Signed-off-by: Simon Busch <morphis@gravedo.de>
Merge pull request #133 from webOS-ports/morphis/work

Morphis/work