cLock: added option to highlight the upcoming calendar events

With this option, today's, and after 8pm also tomorrow's events can
be displayed bold and in different colors.

Patchset 1-7- Initial commits
Patchset 8  - Fix strings
            - Fix preference summaries for color preferences
            - Set feature defaults to off
Patchset 9  - Fix bold preference

Change-Id: I209442c0747ed5984f312c85c6744400a83b17fb
Fix widget sometimes indefinitely showing 'Widget is loading...'

When hiding the calendar panel, we can't just load a new RemoteViews
instance and hide the calendar. We also have to populate the data we
want to display.

Change-Id: I0c4aad20376406b9f8a9abcd763c8bf4f166cea6
cLock: Bump version

Change-Id: I5a5e8cb3fb95c0f2d428b1bbefe0f46a56da1815