Make sure there is no race between the POST by PrimeFaces and Atmosphere socket

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10678 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Allow EventBu#publish from the OnOpen annotated method

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10679 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c