Issue #37 Switch to using userIDs instead of emails
  - First pass implementation
  - Run sql/user-id-migration.sql first then set bvp.users.migrateIds=true in .config
Issue #37 Switch to using userIDs instead of emails
  - First pass implementation
  - Run sql/user-id-migration.sql first then set bvp.users.migrateIds=true in .config
Use userid instead of email to match current user to comment author
Merge branch 'userid' of github.com:sbearcsiro/volunteer-portal into userid

Conflicts:
	grails-app/controllers/au/org/ala/volunteer/TaskCommentController.groovy
Merge branch 'master' into userid
Disable maven-deploy for travis-ci pull requests
Merge pull request #50 from sbearcsiro/userid

Issue #37 Change from email addresses to user ids