Pa People ingest. Two scheduled tasks, ingesting from pa profiles files.
 - one ingests a daily file of the form yyyyMMdd_profiles.xml. Runs daily.
 - one ingests the most recent full dump file of the form yyyyMMdd_profiles_full_dump.xml. Not scheduled, must be manually run.
Now ingests people files in date order for daily task.
Added lock on people ingest tasks, so only one can run at once.
Bootstrap task will mark all daily files from before the bootstrap date as processed.
Daily task ingests all uningested daily files, rather than just todays.
Actually instantiate the people lock
wrap locked code in try finally
 - Add separate property to enable/disable pa people ingest
 - Switch order of check to fail fast on error
change name of pa people enabled property
Merge branch 'master' into mbst-3937-pa-biogs

Conflicts:
	pom.xml
	src/main/java/org/atlasapi/remotesite/pa/PaModule.java
	src/main/java/org/atlasapi/remotesite/pa/data/DefaultPaProgrammeDataStore.java
	src/main/java/org/atlasapi/remotesite/pa/data/PaProgrammeDataStore.java
Adjust dummy store in channels test to include new method on store
Remove redundant null check
Merge pull request #236 from atlasapi/mbst-3937-pa-biogs

Ingest PA Biogs