Fixes CGPathAddRoundedRect compile error on iOS 7. Resolves issue #99
Merge pull request #105 from MartinMReed/master

Hotfix for CGPathAddRoundedRect compile error on iOS 7.
Changed initWithCoder: to call the super implementation, allowing position, size, etc. to be preserved when using an SVGK*ImageView in a NIB file.
Added support for parsing external CSS stylesheets.
Improved external CSS loading to first try relative paths.
Improved CSS style rules to parse individual selectors, added support for element and identity selectors.
Improved the handling when the CSS file isn't found by the usual methods.
Clear SVGKImage cache when app enters background.
Merge pull request #123 from florianreinhart/background-clear-cache

Clear SVGKImage cache when app enters background.
Merge commit 'ec8257ca810888c49e99da61dd009838876d30ff' into 1.x

# By David Gileadi (1) and Martin M Reed (1)
# Via David Gileadi (1) and adamgit (1)
* commit 'ec8257ca810888c49e99da61dd009838876d30ff':
  Changed initWithCoder: to call the super implementation, allowing position, size, etc. to be preserved when using an SVGK*ImageView in a NIB file.
  Fixes CGPathAddRoundedRect compile error on iOS 7. Resolves issue #99

Conflicts:
	Source/DOM classes/Unported or Partial DOM/SVGRectElement.m
	Source/UIKit additions/SVGKFastImageView.m
	Source/UIKit additions/SVGKLayeredImageView.m
Merge commit '499b34c536ad855b7664b211740e456460694aa9' into 1.x

* commit '499b34c536ad855b7664b211740e456460694aa9':
  Added support for parsing external CSS stylesheets.
Merge commit '9d364bd2e78d748074cd8710a9e5f56974321bfa' into 1.x

* commit '9d364bd2e78d748074cd8710a9e5f56974321bfa':
  Improved external CSS loading to first try relative paths.
Merge commit '2481673bf6bfbf12da4702fa2ac7460da1c1c861' into 1.x

* commit '2481673bf6bfbf12da4702fa2ac7460da1c1c861':
  Improved the handling when the CSS file isn't found by the usual methods.
  Improved CSS style rules to parse individual selectors, added support for element and identity selectors.
Moved changes out of core DOM classes.
Improved the performance and memory usage of parsing individual selectors.
Removing accidental reverts.
Merge pull request #124 from dgileadi/1.x

Add support for external CSS stylesheets and marginally improved CSS parsing, "Leave Core DOM Alone" edition
Fixed odd demo scenario that loads a layered image with a nil decoder, improved format and location of populateFromImage.
Merge pull request #125 from dgileadi/1.x

Fixed the demo issue mentioned in pull #124.
Skipping cache purge and log message when cache is empty