Merge pull request #68 from jbovet/community

Added more methods on SFPreferences, scoped some user defaults
Adding upgrade note about background thread REST requests
Merge pull request #519 from khawkins/master

Adding upgrade note about background thread REST requests
Merge remote-tracking branch 'origin/master' into unstable
Merge pull request #520 from khawkins/unstable

Mobile SDK: Merging master into unstable
Merge pull request #69 from khawkins/unstable

Mobile SDK: Merging unstable to git.soma
Merge pull request #70 from SalesforceMobileSDK/unstable

Mobile SDK: Merging unstable into community
Not using CDVConnection anymore
Removing unused submodule
Removed work against samples repo from install.sh
Fixed an issue accessing the array on multiple threads
Merge pull request #71 from jbovet/community

Fixed an issue accessing the array on multiple threads
Removing reference to cdvconnection plugin / Putting back one sample app (the simplest) to make it easier to manually test hybrid apps
First round of user switching functionality
Fleshing out more user management actions
Login account, logout specific account, delete account updates
Adding current user info target
Couple of code cleanup requests
Merge pull request #514 from khawkins/acct_management

Account management updates
Merge pull request #73 from khawkins/unstable

Mobile SDK: Merging unstable to git.soma