Added donation link
Working on new version 1.0.4

onUpdateLightbox callback is now available. Image size in lightbox is now modified via css and original size is stored in attributes.
Updated docs for 1.0.4 and fixed some bugs in documentation.
Merge branch 'develop' of github.com:Sebobo/jquery.rondell into gh-pages

Conflicts:
	examples/demohelpers.js
	index.html
	src/jade/index.jade