camerawrapper: better logging

Change-Id: I81eea1765773a1c477bdd70cf8cf57f0c3f4eb36
Dotcase: Improve exception-handling

Don't catch generic Exception, and log exceptions as errors. Also,
remove try-catch blocks around things which seemingly do not throw any
exception.

Change-Id: I333be1f178fec12f38caded0c176c93f6ed710b1
Dotcase: Only check for new notifications before displaying them

Rather than check for new notifications on every redraw, only check at
the beginning of each animation cycle (i.e., right before they're
about to be shown). This reduces notification checks from about twice
per second to about every 3 seconds.

Change-Id: Ia53de5bc24f3e41d33bfe5bc7c0f56b284e4d3e8
Merge "camerawrapper: better logging" into cm-11.0
Merge "Dotcase: Improve exception-handling" into cm-11.0
Merge "Dotcase: Only check for new notifications before displaying them" into cm-11.0
Merge remote-tracking branch 'cm/cm-11.0' into HEAD