Free GError on prefs load
Added valgrind suppressions
Free titlebar current_recipient when switching to console
Free account_name preference on autoconnect
Free values on wins_get_chat_recipients
Free tokens when 0 supplied an 0 min, parse_args_with_freetext
Free keys lists in windows.c
Fixed memleaks with otr policy and autoaway options
Added deallocation function for string prefs, added otr policy enum
Merge branch 'master' into xep-0223