Lockscreen: check for 600dp device to hide minimize challenge option

Change-Id: Ie2d281cdf22d16ba4d63ad5b81f1a1ad18e5617c
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>
RC : Allow user selectable StatusBar FontSize

PS 1: Combined the the FW side, this will allow the user to select
a custom font-size for text used on the StatusBar.
Note that I put this in 'Signal' area for now, but really needs to be on the
main preference screen as a sub-category of StatusBar (or in Gen UI?)
I didn't want to try and put in main area as no other preferences are set
directly there (all lead to other fragments).  But putting it in Signal
is misleading, as it effects other areas.  Putting in GenUI might be best,
but that area is already way too crowded.

ps 2:  Rebased and moved setting to GenUI.
ps 3: Fixed persistence of setting
ps 4:  Whitespace & Formatting.

Change-Id: Iadcecf66c23d98fca5557047eedf711e47b042dd
Signed-off-by: Zaphod <mwilson@acesappraisal.com>
Merge "Lockscreen: check for 600dp device to hide minimize challenge option" into jb-mr1
Make method names clearer

Rename isTablet() and isPhablet() to isTabletUI() and isPhabletUI()
to make the meaning clearer.

Change-Id: I7bc61b51275e4a2bdffe16a38b0b4467cc0a476a
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>
Merge remote-tracking branch 'upstream/jb-mr1' into jb-mr1