Item12345:Item12474:

   * added jquery-2.0.0
   * upgraded jquery.migrate
   * muting migration warnings by default
   * fixed ui::dialog initializer loading from relative urls
   * using uglifyjs to minimize js instead of outdated yui-compressor (which isn't able to complress jquery-2.0 and above anymore)



git-svn-id: http://svn.foswiki.org/trunk@16726 0b4bb1d4-4e5a-0410-9cc4-b2b747904278