Merge pull request #6 from amy-kurtzman/stage

CBL iOS: update contributing section
Adding release notes for couchbase sdk 1.2
Merge branch '1.2-relnotes' into stage
Merge pull request #7 from daschl/stage

Java SDK Release notes for 1.2
updating the supported platforms
Merge pull request #8 from anilkumar29/stage

updating the supported platforms
Merge pull request #10 from couchbaselabs/stage

Merge stage into master
Fixed a small typo

Re-added "npm" for alternative sudo command-line
another fix for npm omission typo
Merge pull request #11 from couchbaselabs/jessica-staging

Jessica staging
Merge pull request #12 from amy-kurtzman/stage

Sync Gateway: misc doc cleanup
update .ruby-version file to 2.0.0-p247
Merge branch 'stage'