[PageLayout] Added the property PreviewImagePath which is the path of the preview icon of a page layout. In the EnsurePageLayout, the property is set if it is not null
Merge branch 'develop' of https://github.com/GSoft-SharePoint/Dynamite into develop
[JS CORE] Added the method GetAbsoluteImagePath. This method returns the absolute path of the image when you are on an XSP site. The method parses the value with a regex instead of jQuery because jq add an element to the DOM and so the browser gets the url with a 404.