Revision 309558

Update to 2.14.0.

* Add a test for empty(${VARIABLE}) (instead of empty(VARIABLE)) [1]
* Add a test for NOPORTDOCS and point to PORT_OPTIONS:MDOCS [1]
* Add GitHub to the MASTERSITES whitelist (as this is a cloud service). [2]
* Add a warning about .DS_Store files appearing in the port directory. [3]
* Add a check for the new style Makefile headers. [4]
* Remove the CVS checks now that the ports tree has been converted to SVN.
  Note: we need SVN checks. [5]
* Add support for optionsNG [6]
* Deprecate USE_GNOME=pkgconfig [6]
* Add missing period at the end of some sentences [6]

PR:		172621 [1]
		172834 [2]
		173649 [3]
		174688 [4]
		174693 [5]
		174697 [6]
Submitted by:	Alan Hicks <ahicks@p-o.co.uk> [1]
		"Steven Kreuzer" <skreuzer@exit2shell.com> [2]
		ehaupt [3]
		crees [4]
		tota [5]
		Alex Kozlov <spam@rm-rf.kiev.ua> [6]