QPID-5981: Improve look and feel of 'Add binding' dialog in web management console:
           make 'Binding Argument' grid height auto-resizable
           make 'Binding key' form field required
           replace 'Binding Arguments' button captions Add/Delete with +/-
	   remove empty option for x-qpid-no-local

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1617238 13f79535-47bb-0310-9956-ffa450edef68