Fixes an issue with undefined QElement types crashing app
Allow QSelectSection to work with subclasses of QSelectItemElement.

Changed the ```isMemberOfClass:``` call in the ```addElement:``` method
to ```isKindOfClass:``` to allow for proper subclassing of
QSelectItemElement.

I ran into this bug wondering why my ```AttributedSelectItemElement```
subclass of ```QSelectItemElement```
subclass didn't seem to work as expected.
fixed issue with boolean switch in sample code not able to execute selector specified.
fixed so subforms have correct controller name set
Remove redundant method declaration
Added trim policy to JSON
Merge pull request #528 from charlesbedrosian/master

fixes to method not found errors on QuickReportController in sample code
Merge pull request #527 from bartvandendriessche/enhancement/allow_qselectsection_to_work_with_qselectitemelement_subclass

Allow QSelectSection to work with subclasses of QSelectItemElement.
Merge pull request #533 from Igotit/master

Remove redundant method declaration
Moved some of the cell rendering to the appearance class, now we have two implementations, one for flat and one for classic. Still need to fix headers, etc.
Moved toolbar style to appearance.
Changes fonts to iOS7 default
Removed style provider, moved all the functionality to the QAppearance class.
Fixes cell color
Removes custom header/footers, settings won't work on flat appearance for now
More cleanup
More cleanup
Moved non-essential elements to an extra dir. They still can be used by apps, they just have to be imported manually. Decreases dependencies.
Fixes warnings in iOS7
Sets default to multiple lines on cell, small tweaks