Style improvements for Panic

Task #3294
Handle spanned tibetan text

Used e.g. for underlined text in PanicAcitivty and formatted text in
Settings->Sync Freqency.

Bug #3374.
Merge pull request #62 from N-Pex/master

Panic style updates
Update to latest securereaderlibrary

Conflicts:
	external/securereaderlibrary
Update to latest CacheWord

Conflicts:
	external/CacheWord
Added finish() after wipes
Merge branch 'master' of https://github.com/guardianproject/securereader

Conflicts:
	external/CacheWord
Added fulltextfeeds option
Update to latest
Enable Screenshots setting

Also, moved activity restart functionality to LockableActivity (needed
for recreating the whole activity when switching language or toggling
the enable screenshots setting)
Remove ourselves from list for "Read full article"

Bug #3377
Merge pull request #66 from N-Pex/master

Remove ourselves from list for "Read full article"
ActionBarCompat

Task 3284
Fixes for ABC
Merge pull request #67 from N-Pex/master

Change to ActionBarCompat
Remove ABS folder
Make BT share/receive popups (DialogFragments)

Signed-off-by: N-Pex <npexdev@gmail.com>
Merge pull request #68 from N-Pex/master

Make BT share/receive popups (DialogFragments)
Merge branch 'master' into master_feature_3247

Conflicts:
	app/src/info/guardianproject/securereaderinterface/LockableActivity.java
Use mPrefs from super class