Updated dev helper to create the managed_schemas table.
Updated the openshift app context to configure the hbase master to
listen on port 16000 instead of the default 60000, as we are not
allowed to connect to port 60000 in openshift.

Will now take a snapshot when enter is pushed while focused
on the text box input.
Fixed an error in the README that pointed the user to the
wrong path for the web application URL.