#4 Fixed in language system

[David H.]

Providing a default language would die the script
because $validLanguage would not be set to true (line 105)

Also I removed the $currentVersion = "3.3a" in line 25
because it was already specified in config.inc.php and
it was wrong to (the version was 3.3b)

But afcourse the most important is that I fixed a typo
on line 130 ;-) (langage instead of language)

[David H.]

Modified index.php