Add in lastUpdatedTime. If this is stored in mongo, retrieve and use this to get subset of feed, else get full feed.
From feed, obtain lastUpdatedTime and store.
changes related to store.retrieve() method returning an Optional<String>
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
SearchController understands type and topLevelOnly params
add type and top-level param to valid search params
Extensive changes to channels and channelGroups to support xml.
1. ChannelController and ChannelGroupsController now implement BaseController
2. ChannelSimplifier has been migrated to use the AtlasModelWriter, and refactored extensively
Moved the channel numbering simplification test to reflect the move of the simplification code. Also a bug fix in the simplification code.
Merge branch 'master' into mbst-4019-ingest-pa-channel-data

Conflicts:
	src/main/java/org/atlasapi/query/v2/ChannelSimplifier.java
	src/test/java/org/atlasapi/output/simple/ChannelNumberingSimplificationTest.java
Merge pull request #226 from atlasapi/mbst-4019-ingest-pa-channel-data

Support for XML on the channels/channelGroups endpoints
Extract Films from the Lovefilm .csv data.
Create task branch on top of xml changes for channel/channelGroup filtering by publisher
Merge pull request #212 from atlasapi/mbst-3962-search-episodes

Search Episodes
Rename isTopLevel flag to isTopLevelOnly
Merge pull request #227 from atlasapi/mbst-4499-channel-filtering

Channel/ChannelGroup filtering by publisher
Set lastUpdated to now when running the ingest. Also add script to add lastUpdated to all lovefilm items.
Add currentBroadcastsOnly filter for search endpoint
Merge pull request #228 from atlasapi/current-broadcasts-only-flag

Add currentBroadcastsOnly filter to search endpoint