Merge pull request #1 from nZEDb/dev

Dev
Merge pull request #2 from nZEDb/dev

Dev
Alter mysql schema to partition releases table by categoryid range
Alter mysql schema to partition releases table by categoryid range
Merge branch 'dev-ruhllatio-relpartition' into dev-test

Conflicts:
	Changelog
	resources/db/schema/mysql-ddl.sql
Merging ruhllatio's mysql partition changes and fixing conflicts.