fixed drop out of stage on firefox
better design on website
fixed background color with opacity throws a js error
prevent file with image urls like url('&quote;
useless warnings (the URL is not absolute, the URL is not on the same domain as the base url, Notifications are not supported for this Browser/OS version yet)
fixed pageable-plugin-created css class of the stage appears in the css classes in silex
added a class to the classes to hide from editor
clean up website html markup
fixed download .css from static.silex.me during publication
fixed publication on preprod

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Merge pull request #161 from lexoyo/master

bug fixes, publication, images