remove unnecessary assertions in tests.
Add 'scheduled' task for population of person lookup collection
Merge pull request #295 from atlasapi/send-delete-if-no-availability

If an item has no availability, set activelyPublished flag to false.
Move UpdateProgress to common
Merge pull request #297 from atlasapi/move-update-progress

Move UpdateProgress to common
Merge pull request #298 from atlasapi/mbst-6116-bt-featuredcontent

Mbst 6116 bt featuredcontent
Fix UpdateProgress imports
Output the v4 channel ID as an alias
Change PA image dimensions to match new image dimensions
Merge pull request #300 from atlasapi/add-v4-codec-to-channel-as-alias

Output the v4 channel ID as an alias
Change method for generating Java from xml schema files, so that only one generated-sources folder
needs to be added to the build path. Unfortunately, it doesn't seem to add the generated-sources folder
to the build path automatically.
update pa channel schema files.
Add full images to channels.
 - refactor image simplification code out into separate image simplifier.
 - rework channel simplification to populate new images field on both channels and channel history
elements.
Add forceUpdate element to jaxb2 executions, to ensure that files are regenerated, as
stale flag seems to be ineffective. also remove duplicate maven-compiler-plugin element.
Improve error messages for 404 and 400 on channel(group)s endpoints
Only create history entries for images / titles with non-null start dates.
Move cassandra properties out to environment properties files, to make cassandra more configurable.
Merge branch 'mbst-5686-ingest-pa-channel-logos' into stage

Conflicts:
	src/main/java/org/atlasapi/output/simple/ChannelSimplifier.java
	src/main/java/org/atlasapi/output/simple/ContentModelSimplifier.java
	src/main/java/org/atlasapi/output/simple/DescribedModelSimplifier.java
	src/main/java/org/atlasapi/output/simple/ItemModelSimplifier.java
	src/main/java/org/atlasapi/output/simple/PersonModelSimplifier.java
	src/main/java/org/atlasapi/remotesite/channel4/epg/C4EpgBrandlessEntryProcessor.java
	src/main/java/org/atlasapi/remotesite/channel4/epg/C4EpgEntryProcessor.java
	src/main/resources/config/environment.properties
	src/test/java/org/atlasapi/output/FullToSimpleModelTranslatorTest.java
	src/test/java/org/atlasapi/output/simple/ItemModelSimplifierTest.java