Fix php55-ioncubeloader class declaration (+1 squashed commit)
Squashed commits:
[481c158] Updated Ioncube version number to 4.5.0 for PHP 5.3 and 5.4, SHA1 updated by 5c833e070e7ceb66b71d3f7f00fed518d3619715
Added Ioncube for PHP 5.5, currently 64-bit only so added architecture dependency