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.