starting on changes to PostgresStore
persistance changes in DatasetService. There's a chance these may conflict with Robert's changes
assign column system ids
Merge remote-tracking branch 'github/update-dc-client-wip' into column_name_persistance

Conflicts:
	soda-fountain-lib/src/main/scala/com/socrata/soda/server/services/DatasetService.scala
	soda-fountain-lib/src/main/scala/com/socrata/soda/server/services/SodaService.scala
post-merge changes
Merge remote-tracking branch 'github/update-dc-client-wip' into update-dc-client-wip

Conflicts:
	soda-fountain-lib/src/main/scala/com/socrata/soda/server/services/SodaService.scala
refactoring name store to return columns as well as dataset ID
refactoring cleanup
Merge remote-tracking branch 'github/update-dc-client-wip' into update-dc-client-wip

Conflicts:
	soda-fountain-lib/src/main/scala/com/socrata/soda/server/services/DatasetService.scala