cell.userInteractionEnabled is now equal to the enabled property of the Element it belongs to.

This fixes a bug that still allowed you to select cells whose Elements had been disabled dynamically.

e.g.:  Let's say we have 2 QPickerElements. The second QPickerElement changes it's options based on the value of the first. If the first QPickerElement value is empty, then the second QPickerElement should have no values, and should be disabled.

With this fix, you can set secondQPickerElement.enabled = NO and then use UITableView's reloadRowsAtIndexPaths:withRowAnimation to properly disable it in the UITableView.

This was not possible before, because the userInteractionEnabled property was only set correctly in the implementation of QButtonElement and QElement, which wasn't always reached because not all QElement subclasses call super (e.g. QPickerElement)
Merge pull request #464 from bartvandendriessche/features/cells_respect_element_enabled_property

Make cells user interaction respect their element's enabled property
Deselect row when navigation controller pop

Before this change when the view pop back the cell didn't deselect
automatically
Rev'd up podspec
Forget to change it here. Sorry.
Merge pull request #474 from russ/master

Rev'd up podspec
Merge pull request #470 from pepibumur/master

Deselect QMultiLineElement when back
Fix CocoaPods build
Merge pull request #475 from berg/master

Fix CocoaPods build
Fix QSegmentedElement display problem

Remove UIUserInterfaceIdiom specific code and instead make the
segmented control resize it's own width and height, with an initial
frame matching the cell.contentView.

Also add the segmentedcontrol to the cell's contentView rather than to
the cell directly.

This fixes the QSegmentedControl rendering issues that are visible in the iPhone and
iPad versions of the QuickDialog example (under the Sample Controls) section.
Merge pull request #483 from bartvandendriessche/fix/qsegmentedcell_render_bug

Fix QSegmentedElement display problem
Fixed bug in getImageFromItem: method.

The description of the selected value is used erroneously.
Fixed default QColorPickerElement items.
Merge pull request #485 from SSheldon/master

Fix QColorPickerElement getImageFromItem: method
Merge remote-tracking branch 'upstream/master'

Conflicts:
	QuickDialog.podspec