Added a new tab in the doc examples with the output loaded async via ajax calls
Restored original settings in ensembl_rest.conf and REST.pm
Remove version dependencies for Catalyst and retire Catalyst::Plugin::SubRequest. Shift Ajax code to provide main example output.
fixes in the pretty print of ajax content and the spinner image
Merge branch 'master' into feature/ajax_examples to test modifications in normal context
Merge in SubRequest-free modifications. Dependencies updated to be free from version restrictions.