Allow switching to tablet style UI for phone and phablet devices. [2/2]

Change-Id: I5c51b8d4e443c9f5e2d36d4df12bb666afe55ae0
Remove screen size check for tablet UI option.

Change-Id: I56d822d182d029e0b828b84b6866a6a627e3b704
Add gesture based lockscreen security. [2/2]

PS2:
Tidy things up a bit.

Change-Id: I83e3ab643e19b2a2d9c8416f4925bbab05bbc896
Merge pull request #2 from ChameleonOS/jellybean-mr1

Jellybean mr1