Updated compatibility info
Merge branch 'master' of github.com:kartena/Proj4Leaflet
Added .jshintrc and fixed hinting errors
Undo adding zoom arument, since it's not passed by Leaflet. Use map's zoom in calculations, use _getZoomForUrl in URL to properly handle zoomReverse etc.
Merge pull request #50 from perliedman/jshint

Jshint fixes