Fixes issue #38

This changeset implements postfix comments "///<" for most elements:

 * @property
 * -/+ method declaration
 * -/+ method definition
 * NS_ENUM/NS_OPTION typedef
 * NE_ENUM/NS_OPTION keys

Multi line postfix comments are supported within above elements.

Postfix comments are ignored for classes, interfaces, protocols, etc.

If both, a normal (prefix) and a postfix comment is available, the postfix
comment is ignored.
Added typedef block parsing
Added cross referencing for top-level defined blocks
Implement simple cross referencing within method outputs
Fixed compiler warnings about missing [super dealloc]s
Fixed possible bug for constants in stringByConvertingSimpleCrossReferencesInString: cross reference prevention
Fixed compiling with latest xcode
Merge pull request #459 from dhoepfl/postfix

Fix for issue #38: Allow single-line comment *after* the documented line
Merge pull request #462 from DerFlash/blocks

Added typedef block parsing
[ISSUE-439] First pass on converting appledoc from GC->ARC.
[ISSUE-439] Convert appledoc-test to ARC
[ISSUE-439] Code workarounds to resolve API changes in DDGetoptLongParser and new clang pedantry.
[ISSUE-439] Use %s format when printing longopt names
[ISSUE-439] Update GRMustache to 7.0.2
[ISSUE-439] Nuke GRMustache 3rdparty directory
[ISSUE-439] Update GBTask to properly clean up notification observation.
[ISSUE-439] Remove unnecessary data source handling for GRMustache.
[ISSUE-439] Downgrade Mustache; apparently there were modifications since v1.1.3 which break appledoc.
[ISSUE-439] Cleanup after merge in from master.
Merge pull request #466 from sptramer/issue-439

Convert appledoc to use ARC
Fix insecure format string warning.
Remove ancient, irrelevant build settings.
Allow SDK and compiler to be set by Xcode automatically.
Remove unnecessary double quotes from Xcode build settings.

Xcode will already quote these as necessary.
Merge pull request #467 from petroules/appledoc-fixes

Appledoc fixes