Command line tools updates
Merge pull request #110 from akhileshgupta/unstable20

adding support for describe layout rest api
Use SalesforceOAuth plugin to get new session token
Rename 'forcetk' to 'forcetk.mobilesdk'
Update copyright
Update API version
Replace 'forcetk' with 'forcetk.mobilesdk'
Cleaning up commandLineUtils, comments
Left a debugging console.log in
Make callback for authenticate pluggable
Merge pull request #113 from forcedotcom/command_line_module

Shared node modules
Add auth callback implementation to sample apps
Merge branch 'unstable20' of https://github.com/forcedotcom/SalesforceMobileSDK-Shared into unstable20
Update header comments
Move forcetk refresh into the OAuth plugin
Decouple entity framework from OAuth plugin
Bugfix
Merge pull request #112 from bhariharan/unstable20

Introducing 'forcetk.mobilesdk.js'
Update references to forcetk
Set 'X-User-Agent' header to same value as Mobile SDK user agent