Fixed issues #289, #235 for Xcode 4.4 and above
1. Xcode will crash on ALT-DoubleClick every time when trying to look up selected text in Xcode Organiser
2. ALT-Click shows QuickHelp bubble OK, but if the method is not from one of the standard framework classes, the 'Reference' link at the bottom of the pop-up is not shown.
   Thus you can't jump to Organiser help on  your own classes and methods from the Quick Help bubble.
3. Added sample Xcode integration script to generate dockets automatically as target

Fix Notes:
    1. modify template file "tokens-template.xml" to add node reference for methods
    2. modify "GBDocSetOutputGenerator.m" to add this node reference to the generated xml file
Custom setters like @property(… setter=mySetter)… will now have a proper reference link from the help bubble in setter method in implementation file to @property's help page in Quick Help (ALT+click).
some clean-up for quick help (ALT+click) bubble fix in methods and setters.

If @property is used with setter= xxx and the setter's method is explicitly presented in @implementation section, quick help will link back to @property correctly.
But If @property is used with getter= xxx and the getter's method is explicitely presented in @implementation, the quick help on getter will not show @proprety's comments. A substantial modification of code is required to accommodate this functionality for custom getters. May fix it a bit later...
- Fixed issue #318
- Fixed #235, #289, #315. Adder proper Quick Help Reference links for @property's getters and setters methods when they are explicitly defined in the code. Now the reference link in Quick Help (Alt+click) and Help Organiser (ALT+doubleclick) point to @property.
Merge pull request #315 from andreiaf/master

Fixed Xcode crush on ALT+double-click and resolve QuickHelp lookup problem (#235, #289, #315). Fixed #318 for incorrectly formatted setter in @property