[Clipart] checkin - php 4.4.1 compliance

[Victor Stone]

Seems we were generating an error for one of my sloppy old habits: 
namely claiming methods returning references on the calling side. It 
appears php 4.4.1 balks (as it should) when I did that.

This does not affect production sites with CCDebug::Enabled(false) in 
index.php

	* cclib/cc-contest.php 1.23:
	* cclib/cc-debug.php 1.13:
	* cclib/cc-feed.php 1.9:
	* cclib/cc-form.php 1.26:
	* cclib/cc-navigator.php 1.20:
	* cclib/cc-template.php 1.15:
	* cclib/cc-user.php 1.36:
		php 4.4.1 compliance

VS