v2.11.1: Merge pull request #34 from luxifer/fix-collector-template

remove useless inline stype for collector template

Improving the ability of external contribution

• Add CONTRIBUTING.md
• Add coke in dev dependencies, and execute it in travis builds

PSR-4

Update bundle directory structure to PSR-4

v2.5.3: Merge pull request #18 from M6Web/feature/console-events

Add custom console events