no spaces in account name

plugins/gtkgui/config.py

@@ -381,6 +381,9 @@ class accountPreference_Window:
 		if (name == ''):
 			warning_Window('You must enter a name for this account')
 			return 0
+		if name.find(' ') != -1:
+			warning_Window('Spaces are not permited in account name')
+			return 0
 		if (jid == '') or (string.count(jid, '@') != 1):
 			warning_Window('You must enter a Jabber ID for this account\n\
 				For example : login@hostname')

plugins/gtkgui/dialogs.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-##	plugins/gtkgui.py
+##	plugins/dialogs.py
 ##
 ## Gajim Team:
 ## 	- Yann Le Boulanger <asterix@crans.org>