Widgets / Improve layout

[fxp]

• Align thumbnails in results view
• Increase div button to collapse panels
• Facet: add css style for more/less action, Align vertically, Increase bottom margin between facet
• Editor: xml textarea height should be 100%
• Editor: when adding an element in advanced view mode the view menu is not properly set (missing entries)
• Add option to have the paging in the top toolbar of the result view
• Add css highlight class to call for actions
• Avoid error on initialization on IE7

[fxp]

master commit 9475d8e5aaf08bab395c0f6f06d24f881f76a061