[NaCl SDK] Update lua example on appengine.

Update naclterm.js to latest version from naclports.
Roll naclports revision to get latest lua version (5.2.2).
Update the instructions in the README file.
Update lua to point to new published version of the lua
binaries.

R=binji@chromium.org

Review URL: https://codereview.chromium.org/53803005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232479 0039d316-1c4b-4281-b951-d872f2087c98
linux_aura/chromeos: Match unhandled_keyboard_event_handler_win.cc.

The previous linux implementation of unhandled_keyboard_event_handler
_linux.cc was basically a stub and didn't process accelerators like
in the windows version. When FocusManager prevents a key from being
dispatched, it's UnhandledKeyboardEventHandler which dispatches
the accelerator after the fact, and that's why the previous patch
broke keyboard accelerators in web contents.

BUG=304935
TEST=manually tested on both linux_aura and chromeos builds. Tab cycling, backspace in textareas, and keyboard shortcuts in content areas worked in both builds.

Review URL: https://codereview.chromium.org/49673004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232480 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232480
[cast_unittests] Disable End2EndTest.StartSenderBeforeReceiver (it's non-deterministic).

BUG=314233
TBR=hubbe@chromium.org

Review URL: https://codereview.chromium.org/53803006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232481 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232481