Fixed alarm expression BNF description to not require colons between metric name and dimensions. Added quoting around constants in API descriptions.
Fixed alarm expression BNF description to not require colons between metric name and dimensions. Added quoting around constants in API descriptions.

Change-Id: I366c0d59c59e5781b5e065b27ad852faa4ade70f

stackforge/monasca-api,oneilcin/monasca-events-api,sapcc/monasca-api,oneilcin/monasca-events-api,hpcloud-mon/monasca-events-api,oneilcin/monasca-events-api,stackforge/monasca-api,openstack/monasca-api,hpcloud-mon/monasca-events-api,hpcloud-mon/monasca-events-api,stackforge/monasca-api,hpcloud-mon/monasca-events-api,openstack/monasca-api,oneilcin/monasca-events-api,stackforge/monasca-api,sapcc/monasca-api,openstack/monasca-api,sapcc/monasca-api