added next&prev-function
added github-ribbon
added carousel-option
removed testimage
extended docs
open() can take strings now
added prev & next-buttons
added resizehandler for controls
added styling & animation for controls
extended documentation
added isset()-check to load(); fixed strange lineendings
added check for existence of btns in resize()
extended markup
removed unneeded refresh-function
hide controls on close
added minified version
added prefixr-mixin
added animations
extended documentation
added separate active-class for wrapper