change Destination context to use db on vagrant VM for local testing
add separate copy of liquibase changelog, just for reference
add OXYGEN columns to NRS_CHEMISTRY table
use new context group Source for WFS server URL and set it to https instead of http
remove extra comma in liquibase changelog causing SQL syntax error
change UTC time columns back to timestamp with timezone, LOCAL time columns to string, and station START_DATE to date
remove _map views as they are not needed
Merge pull request #45 from aodn/anmn_nrs_bgc_update

NRS BGC harvester: add OXYGEN data, change timestamp types and use context group for source URL