added github plugin updater
added class boilerplate
added picturefilll and some helper methods
fixed intendation
added src-set to image tags
removed debug output
added PHPDoc documentation
Merge branch 'feature/add-documentation' into develop
added a custom filter to modify the scales used in ing set
added PHPDoc
Merge branch 'feature/filter-scale' into develop
added a readme
Merge branch 'release/1.0'