Bug 622513 - Email-related regexp checking should be case-insensitive. a=mkanat.

Bugzilla/WebService/User.pm

@@ -95,7 +95,7 @@ sub offer_account_by_email {
     if (!$createexp) {
         ThrowUserError("account_creation_disabled");
     }
-    elsif ($email !~ /$createexp/) {
+    elsif ($email !~ /$createexp/i) {
         ThrowUserError("account_creation_restricted");
     }
 

createaccount.cgi

@@ -65,7 +65,7 @@ if (defined($login)) {
     $login = Bugzilla::User->check_login_name_for_creation($login);
     $vars->{'login'} = $login;
 
-    if ($login !~ /$createexp/) {
+    if ($login !~ /$createexp/i) {
         ThrowUserError("account_creation_restricted");
     }
 

template/en/default/admin/params/auth.html.tmpl

@@ -120,7 +120,7 @@
                  "the <tt>emailregexp</tt> param to only allow local usernames, " _
                  "but you want the mail to be delivered to username@my.local.hostname.",
 
-  createemailregexp => "This defines the regexp to use for email addresses that are " _
+  createemailregexp => "This defines the (case-insensitive) regexp to use for email addresses that are " _
                        "permitted to self-register using a 'New Account' feature. The " _
                        "default (.*) permits any account matching the emailregexp " _
                        "to be created. If this parameter is left blank, no users " _