Merge pull request #549 from madebysoren/2.1devtf

Changed hasMenu to hasAside when enabling and disabling right side menu.
fix setBackButtonStyle
Merge branch '2.1devtf' of github.com:01org/appframework into 2.1devtf
Fix #485
UIWebView fixes.

Better fallback for "loading content" when ajax fails.  If the ready state is 4 and the status code is not 200, clear the mask.
Merge pull request #551 from madebysoren/2.1devtf

Fixed wrong path in gruntfile moving icons.min.css from ui to css.
confirm fix for #521

much better "perspective" hack for iOS7
code cleanup, etc
Merge branch '2.1devtf' of github.com:01org/appframework into 2.1devtf
rebuild distribution files.
auto enable native scrolling, unless the developer says not to.
proper fixes for autoEnable
add examples to plugins source
bump all the distribution files.
rework native scrolling initializer.

Since 2.1 now creates the div for the JS scroller (no longer requiring the outer container to clip), we can get rid of the "noParent" property.
native scroller fixes.  Incorrectly using hasVertScroll when property is verticalScroll
Merge pull request #1 from 01org/2.1devtf

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