Adding a quick stab at the TTS version of the installed application
Removing the lasterror, checking on the events.
Update clock dart packaged app example for a modern dart.

This change allows the clock to run in Dartium m31, or in Chrome,
without changes.

Changes:
 dart2js no longer accepts --disallow-unsafe-eval
 window.requestLayoutFrame is now scheudleMicrotask from dart:async.
 Date is now DateTime
 List<E>.filter is now List<E>.removeWhere
 String.charCodeAt is now String.codeUnitAt
 js/interop stuff no longer required

Bugfix: Fix numbers not showing up at all when first opened, e.g., at
exactly 4pm and now.minute == 0.

Review URL: https://codereview.appspot.com/56440043
setAttribute requires 2 args [Patch from @envygeeks]
Merge pull request #194 from pearlchen/master

Updated link to CCA toolchain.
[SystemInfo API] Update chrome.system.cpu API usage.
Merge pull request #195 from hokein/update_cpu_api_usage

[SystemInfo] Added CPU features and processor usage.
[systemInfo] Cleaned html
[systemInfo] Bumped manifest version and updated webstore assets
Changed tts name
Addressed Mike's feedback
Fixed lots of nits
Fixes indents
[identity] Bumped manifest version
fixed minor issue in comment.
Added zoom and find buttons
Implemented the zoom box.
Implemented the find box.
Added matchCase functionality to the find box.
Added incremental find