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Check whether NetworkManager is running and return new error
NMC_RESULT_ERROR_NM_NOT_RUNNING when appropriate.

Not all utf-8 characters occupy 1 screen column. Some may be 2-column
wide, some are unprintable - zero columns.

If SSID is a UTF-8 string, it is printed as it is, but enclosed in quotes.
Otherwise the bytes are converted to hex string (in uppercase).
The added quotes for UTF-8 string allow to disambiguate the two forms.

The output is basically tabular with fields (columns) presenting specific pieces of info.
Each line represents a single object. It's possible to switch to multiline output using
'--multiline' option. In that mode single object is presented on more lines - each field
on its line.
Terse mode now uses ':' as field separator. It also escapes all occurences of ':' and '\'
inside field values to ease parsing. The escaping behaviour can be controlled through
'--escape' option. By default, escaping is switched on in tabular mode. When using terse
mode ('--terse'), '--fields' option is mandatory for specifying required fields. That helps
for flexibility and backwards compatibility.
Not all output is converted yet.

	* include/wireless-helper.h
	  include/Makefile.am
		- One place for all the junk needed for #including wireless.h

	* test/nm-tool.c
	  src/NetworkManagerAP.c
	  src/wpa.c
	  src/Makefile.am
	  libnm-util/nm-utils.c
	  libnm-util/nm-setting-wireless.c
	  libnm-glib/nm-device-802-11-wireless.c
	  libnm-glib/nm-access-point.c
	  libnm-glib/libnm-glib-test.c
		- include wireless-helper.h, not iwlib.h

	* configure.in
		- Don't need libiw really, just need to check for wireless.h

	* src/kernel-types.h
		- Remove; used types moved into wpa.c

	* src/nm-device-802-11-wireless.c
		- (nm_device_802_11_wireless_update_signal_strength,
		   real_get_generic_capabilities, nm_device_802_11_wireless_get_mode,
		   nm_device_802_11_wireless_set_mode,
		   nm_device_802_11_wireless_get_frequency,
		   nm_device_802_11_wireless_get_ssid,
		   nm_device_802_11_wireless_set_ssid,
		   nm_device_802_11_wireless_get_bitrate,
		   nm_device_802_11_wireless_get_bssid,
		   nm_device_802_11_wireless_disable_encryption): use ioctl() directly
			instead of iwlib functions




git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@3462 4912f4e0-d625-0410-9fb7-b9a5a253dbdc