Updated version number and added beta designation.

BUG=97498
TEST=

Review URL: http://codereview.chromium.org/7977032

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@102174 0039d316-1c4b-4281-b951-d872f2087c98

remoting/webapp/me2mom/manifest.json

 {
-  "name": "__MSG_PRODUCT_NAME__",
-  "version": "1.0.UNIQUE_VERSION",
+  "name": "__MSG_PRODUCT_NAME__ BETA",
+  "version": "1.2.UNIQUE_VERSION",
   "description": "__MSG_PRODUCT_DESCRIPTION__",
   "default_locale": "en",
   "app": {