added a check for intl extension in check.php (should be optional)
added a check for intl extension in check.php (should be optional)

GromNaN/GitWikiApp,chregu/liip.two,codeinthehole/xwc-sandbox,chregu/liip.two,GromNaN/GitWikiApp,rubensayshi/symfony-tryout,carlossg00/Jobeet2Bundle,rubensayshi/symfony-tryout,chregu/liip.two,codeinthehole/xwc-sandbox