Removed the strict parameter from base64_decode, to be more compatible with...

Removed the strict parameter from base64_decode, to be more compatible with pre-5.2 php. Thanks to Klaas Wierenga for reporting this issue.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@474 44740490-163a-0410-bde0-09ae8108e29a