Bug 231770 Various minor bug fixes that need landing

r=samuel

extensions/irc/xul/locale/en-US/chatzilla.properties

@@ -34,14 +34,14 @@ msg.confirm = Confirm
 
 # command.js
 
-### Note for localisers ###
+### Note for localizers ###
 #
 # ChatZilla uses cmd.<command name>.* to construct the command's help, 
 # parameters and any UI labels. For the command to continue to function, the
 # *.params entries MUST NOT BE CHANGED. Hopefully in the future you will be
-# able to localise these items as well.
+# able to localize these items as well.
 #
-### DO NOT LOCALISE THE *.params STRINGS ###
+### DO NOT LOCALIZE THE *.params STRINGS ###
 
 cmd.about.label = About ChatZilla
 cmd.about.help  = Display information about this version of ChatZilla.
@@ -711,7 +711,7 @@ munger.teletype=Teletype
 munger.underline=Underline
 munger.ctrl-char=Control Chars
 
-# Localised names for all the prefs and tooltip "help" messages.
+# Localized names for all the prefs and tooltip "help" messages.
 # NOTE: "Bugzilla", "Chatzilla" and "mIRC" are product names.
 pref.activityFlashDelay.label   = Activity flash delay
 pref.activityFlashDelay.help    = When a tab that has already had activity on it gets more activity, the tab is flashed to indicate this. This preference is the length of the flash, 0 disables it.
@@ -833,7 +833,7 @@ pref.usermode.label             = Usermode
 pref.usermode.help              = Your usermode determins how the IRC server treats you (it is a list of letters preceeded by "+") - for example, you can get the server to send to message about "behind the scenes"-like things but setting a different usermode. The most common option, "i", makes you not show up as a member of a channel unless the user making the query is already in the channel (it stands for "invisible").
 
 # These are the prefs that get grouped
-# Localisers should make sure each version has the same string, and that they
+# Localizers should make sure each version has the same string, and that they
 # don't include any indication of which pref it actually is - this will be 
 # provided by the dialog itself.