split PressSpace action into modular pieces

doc/bindings

@@ -184,12 +184,18 @@
 #def_key "insert"
 #  select_item
 #
-#def_key "space"
-#  press_space
-#
 #def_key "enter"
 #  press_enter
 #
+#def_key "space"
+#  add_item_to_playlist
+#
+#def_key "space"
+#  toggle_lyrics_update_on_song_change
+#
+#def_key "space"
+#  toggle_visualization_type
+#
 #def_key "delete"
 #  delete_playlist_items
 #

doc/config

@@ -377,10 +377,6 @@
 ##
 #lastfm_preferred_language = en
 #
-## Available values: add_remove, always_add.
-##
-#space_add_mode = always_add
-#
 #show_hidden_files_in_local_browser = no
 #
 ##

doc/ncmpcpp.1

@@ -245,9 +245,6 @@ If set to yes, it will be possible to physically delete files and directories fr
 .B lastfm_preferred_language = ISO 639 alpha-2 language code
 If set, ncmpcpp will try to get info from last.fm in language you set and if it fails, it will fall back to english. Otherwise it will use english the first time.
 .TP
-.B space_add_mode = add_remove/always_add
-If set to add_remove, pressing space on item which is already in playlist will remove it, otherwise add it again.
-.TP
 .B show_hidden_files_in_local_browser = yes/no
 Trigger for displaying in local browser files and directories that begin with '.'
 .TP