Added runtime check for imageWithRenderingMode: to prevent crash in iOS 6

Signed-off-by: Jai Govindani <jai@monstermedia.co.th>
Merge pull request #607 from zodio/master

Added runtime check for imageWithRenderingMode: to prevent crash in iOS ...
Not including extras by default. Also added subspecs to selectively include extra components

pod 'QuickDialog' will now only include the 'core' elements

pod 'QuickDialog/Core’ will include the core elements
pod 'QuickDialog/Extras' will include all extras
pod 'QuickDialog/QPicker' will only include the QPicker extras
... etc...
Merge pull request #611 from bofrese/podspecs

Not including extras by default. Also added subspecs to selectively include extra components
Fix Issue #617: QRadioElement selected item not appearing as default value

Fix Issue #617: QRadioElement selected item not appearing as default
value
Merge pull request #620 from kayrules/master

Fix Issue #617 QRadioElement default value for selected item index
Fixed issue where trying to reload a cell that is inside a hidden section inserts nil into an array.  Skip reloading elements which are inside hidden sections.
Merge pull request #628 from bgraner/master

Fixed issue where trying to reload a cell that is inside a hidden sectio...
If setting images for items in QRadioElement, 
display them in QRadioItemElement.
Merge pull request #638 from bvirlet/master

Improve us of images in QRadioElement
Adds back the delegate class so we can overview when cells and headers appear
Minor UI updates to cells
Minor fixes to binding evaluator
Adds new inline date time editor
Rounds dates when not date picker uses only Date mode.
Include cell inset when calculating width.
Major fixes to QD
all elements now contain a weak link to the view controller
binding is by default shallow now; there's a new property called shallowBind on QElements that can bypass that
Several bug fixes
Several bug fixes for version 1.0
Podspec update to v1.0
fixed bug when initializing from json; added init method with default float value 0.0