Database: add idea of user linking with objects
Added SALT field to TABLE USERS and TABLE USER_OLD_PASSWORDS
Merge pull request #3 from pedroresende/missing_salt

Added SALT field to TABLE USERS and TABLE USER_OLD_PASSWORDS
Database: add permissions block
Database: add user recovery table
Database: fix user recovery table name
Database: move validations column to the right table
Merge branch 'master' of github.com:MLoureiro/Geega
Database: apply unique index to master email/username of an user