Fix quota checks when max < min, or when promoting and max = 0
Quota 0 is valid for blocking queue, so use 999 as intended "no limit"
Fix IsValidUsername to be static what it really is
Update changelog

Conflicts:
	CHANGELOG.md
Merge branch 'next'

Conflicts:
	CHANGELOG.md
Update release name to changelog
Upgrade guide to version 2014.04.15
Update upgrade doc