Added Gitter badge
Merge pull request #91 from gitter-badger/gitter-badge-1

Add a Gitter chat badge to README.md
restore "label" styling for widgets dropdown
version 0.7.2
link to the Widget Library and UI Console
link to the Widget Library and UI Console
fix #92 option to lock default layouts (prevent from deleting and renaming).
fix #92 option to lock default layouts (prevent from deleting and renaming) - readme
separate file for layouts demo
separate file for resize demo
demo app - directives
demo app - data model, explicit save demo
layout lock feature documentation
layout lock feature documentation
Version 0.7.3