* doc/gladeui-docs.sgml: put me as an author, removed the introductory
	  chapter and added its content as the "abstract".

	* src/glade-editor.c: Fixed a visibility bug on the class & name entries.

	* src/glade-devhelp.[ch], src/glade-utils.c, src/glade-project-window.c:
	  o Added navigational buttons (forward, back)
	  o Gained realestate by hiding the notebook tabs and putting search &
	    document buttons along side the navigational buttons.
	  o Added api to return a list of buttons in the hbox
	  o Get the buttons and put them in a size group with the expand/collapse
	    buttons (to align the plugin buttons in the project window).