[CB-4428] Add android-storage plugin.
Initial commit of Keyboard plugin.
CB-4935 iOS Keyboard preferences code into its own plugin
Added pre-processor macro to check for 3.2.0 availability.
CB-4986 Add Android WebSQL plugin.
Updated keyboard plugin name in plugin.xml
Added statusbar plugin.

This controls whether the statusbar overlays the webview in iOS 7, as well as allows changing of the statusbar styles.
Incorrect js for statusbar plugin
Added statusbar background, including API to change its background color
Added ability to set statusbar background color by hex string.
Removed global var in Keyboard plugin
Added statusbar preferences to plugin.xml

Removed Info.plist section in plugin xml due to crash: https://issues.apache.org/jira/browse/CB-5012
Removed StatusBarStyle. iOS users should just use the UIStatusBarStyle key in Info.plist
Add <info> section to the statusbar plugin.xml
Added Keyboard plugin docs.
Match statusbar style to default background color of #000000
Add StatusBar plugin docs.
Fixed statusbar background view not auto-resizing on landscape.
Removed statusBar prefix from StatusBar plugin API
Implement StatusBar.isVisible