Feature/line length psr2 compat

I would like to relax our line length requirements.

This makes working with [PSR2](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-2-coding-style-guide.md) less frustrating since I only need to fulfill the LineLength Sniffs of that standard.

It does so by abandoning the hard limit on line lengths and moving the soft limit to 120 chars. After this change we will probably need to focus on keeping those line lengths down through review and by enforcing the soft limit (which i do not consider soft in most cases) on ci.