upgrade twitter bootstrap to latest version 2.3.1 and the jquery version from 1.7.1 to 1.9.1
refactor the config file to support multi administrator to manage different robots.
refactor the config file to support multi administrator to manage different robots.
add AddRosterEntryServlet for add entry throw web console.
change the connection's [host] and [port] into config.json to config ever robot connection,so support custom jabber server like openfire etc.
refactor the WebAppListener and ReconnectServlet to use same connect method.
finish basic add entry to robot page
Merge openfire branch into master

can connect the gtalk now. and support custom jabber account config.
Fixes #6, Fixes #8
Merge branch 'master' of https://github.com/jdkcn/jabberer

Conflicts:
	src/main/java/com/jdkcn/jabber/web/listener/WebAppListener.java