* app/tools/gimpcroptool.c
	* app/tools/gimpnewrectselecttool.c
	* app/tools/gimprectangletool.c
	* app/tools/gimprectangletool.h: move tool_control out of rectangle
	tool and into users of it, and make rect select execute on leaving
	but crop tool not.  Also rename functions and clean up formatting
	a bit.