Merge pull request #1 from fxprunayre/feature/multinodes-mode

Merge to develop. Support node config in tabsearch, search and html5ui widget apps. Add node parameter to j_spring_security_check.
Security of multinode now prevents use to be logged into two nodes at once.
Merge branch 'feature/multinode' of github.com:jesseeichar/core-geonetwork into feature/multinode

Conflicts:
	web/src/main/webapp/WEB-INF/config.xml
changed how to configure multinode slightly.
Add node check in login.jsp.
Update example for widget app configuration. Make search the default UI.
Add utility script to add new node configuration.