backport stable branch and some vreg cleanups: * move initialization_completed from cwvreg to base VRegistry class allowing simplification of CWVregistry * cleanup initialization process: __registered__ is now called after initialization completed, by the relevant registry. * fix/remove deprecated tests

/* specific workarounds for Internet Explorer */
div.calpopup {
  margin-left: 0px;
  margin-top: 0px;
}

/* quick and dirty solution for pop to be 
   correctly displayed on right edge of window */
div.popupWrapper{ 
  direction:rtl;
}