Issue 7000 (Replace PNG icons by SVGs)
http://code.google.com/p/fbug/issues/detail?id=7000

Conflicts:
	extension/content/firebug/js/breakpoint.js
	extension/skin/classic/dom.css
	extension/skin/classic/firebug.css
Issue 7000: Fixed icon issues according to feedback

Conflicts:
	extension/skin/classic/firebug.css
Issue 7000: Fixed more icon issues according to feedback 

Conflicts:
	extension/skin/classic/debugger.css
Issue 7000: Added comment related to license
Merge branch 'issue7000b' into issue7004