BS-2965 : [6.2] overview form: 2 scrollbars
BS-373 : [bug]: Unexpected scroll bar in portal

-In the BonitaForm.html, rename the "Wrap" element into "footerpusher"
-Resize form iFrame using the size of the "footerpusher" element.
Merge branch 'master' of https://github.com/bonitasoft/bonita-web

Conflicts:
	console/console-war/src/main/java/org/bonitasoft/console/client/common/view/PerformTaskPage.java
	forms/forms-view/src/main/java/org/bonitasoft/forms/client/view/common/DOMUtils.java