Merge pull request #245 from bhariharan/unstable20

Merge branch 'unstable' into unstable20
Update shared repo SHA-1
Update version
Update README
Merge pull request #246 from bhariharan/master

Merge 'unstable' into master for 1.5
Update version name and version codes
Update shared repo SHA-1
Merge pull request #247 from bhariharan/unstable

Update version name and merge 'master' back into unstable
Merge branch 'unstable' into unstable20
Update shared repo commit