to encodeURIComponent(this.value).  Escape is not sufficient, as it does not
encode +.  Function encode() in hudson-behavior.js is ok, but we can just use
a standard javascript function instead.
Marked encode() as deprecated.


git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@21546 71c3de6d-444a-0410-be80-ed276b4c234a