2008-11-04 [colin] 3.6.1cvs15

2008-11-04 [colin]	3.6.1cvs15

	* src/procmime.c
		w32: Fix getting content-type
	* src/mimeview.c
	* src/prefs_common.c
	* src/prefs_common.h
	* src/prefs_ext_prog.c
	* src/textview.c
		w32: better integration (use the
		standard file associations instead
		of our platform-unadapted open
		dialog)
	* src/mainwindow.c
	* src/common/utils.c
	* src/common/w32_reg.c
	* src/common/w32lib.h
		w32: better integration (allow
		setting Claws as default MUA)