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Merge pull request #246 from bhariharan/master

Merge 'unstable' into master for 1.5
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Merge pull request #247 from bhariharan/unstable

Update version name and merge 'master' back into unstable
Merge branch 'unstable' into unstable20
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Merge pull request #248 from bhariharan/unstable20

Merge branch 'unstable' into unstable20