Changing version to 2.2.0.unstable
Merge pull request #144 from bhariharan/unstable

Merging back from master to unstable with new version name
Merge branch 'master' into unstable
Merge pull request #146 from bhariharan/unstable

Merge 'master' into unstable
Merge pull request #147 from bhariharan/master

Latest dev guide PDF
Merge branch 'master' into unstable
Merge pull request #148 from bhariharan/unstable

Merge branch 'master' into unstable
Replacing PDF with errors
Merge branch 'master' into unstable
Merge pull request #149 from bhariharan/unstable

Merge 'master' into unstable
fix error is not defined bug.

the method is `fail`,but used the `error`
Updating Connected App instructions.
Merge pull request #150 from dozer47528/master

fix error is not defined bug.
Merge branch 'master' into unstable
Merge pull request #153 from bhariharan/unstable

Merge branch 'master' into unstable
Add SFAccountManager plugin for hybrid fast user switching
Bugfix
Remove crap from commit
Merge pull request #158 from bhariharan/hybrid_fast_user

Hybrid fast user switching - JS APIs
Adding switch user and list all users buttons to ContactExplorer