Making sure all text bits that can be written through the writing-room get escaped before being serialized to HTML
Merge pull request #44 from rudyrigot/xss

Making sure all text bits that can be written through the writing-room g...
PSR-2 compliance (using php-cs-fixer)
Basic caching system based on Guzzle's cache plugin
Fixing array initialization that is incompatible with PHP5.3
Merge master on cache