added jqueryui to www
firt version of migration for  Zentyal.Dashboard.toggleClicked
added Zentyal.escapeJQSelector function
begin refactoring of show module widgets
extract two methods from showModuleWidgets
extract another method from showModuleWidgets
yet extract another method from showModuleWidgets
yet extract another more  method from showModuleWidgets
added missing ;
moved some code from configurewidgets tempalte to dashboard.js