MBS-631: Add the 'link_type.is_deprecated' column
MBS-631: Load is_deprecated from the database
MBS-631: Add upgrade steps for is_deprecated
MBS-631: Allow relationship editors to mark relationships as deprecated
MBS-631: Add a trigger denying the creation of deprecated relationships
MBS-631: Add is_deprecated to AddLinkType edit
MBS-631: Split the upgrade scripts into slave compatible and master/standalone only scripts
Merge branch 'mbs-631' into schema-changes-2013-10-15

Conflicts:
	upgrade.sh
Merge branch 'schema-changes-2013-10-15' of github.com:metabrainz/musicbrainz-server into schema-changes-2013-10-15