Providing Appropriate Infrastructure to Add more Languages

Now we can simply have language files in the following format and use them in views easily.

// in english
$lang['some_key'] = 'Some string with %1 %2.';

// in another language
$lang['some_key'] = 'Some string %2 with %1.';

// the actual usage
lang('some_key', 'first', 'second');