Implement SQL permissions

[ostafen]

No description provided.

[coveralls]

coverage: 88.945% (-0.5%) from 89.43%
when pulling a89688f on ostafen:feature/sql-permissions
into bbb1608 on codenotary:master.

[coveralls]

coverage: 89.114% (-0.3%) from 89.43%
when pulling 4586122 on ostafen:feature/sql-permissions
into bbb1608 on codenotary:master.

[coveralls]

coverage: 89.191% (-0.2%) from 89.43%
when pulling 4e83158 on ostafen:feature/sql-permissions
into bbb1608 on codenotary:master.

[coveralls]

coverage: 89.23% (-0.2%) from 89.43%
when pulling 24117dc on ostafen:feature/sql-permissions
into bbb1608 on codenotary:master.

[coveralls]

coverage: 89.292% (-0.1%) from 89.43%
when pulling 339b7da on ostafen:feature/sql-permissions
into bbb1608 on codenotary:master.

[coveralls]

coverage: 89.305% (-0.1%) from 89.43%
when pulling 7b82f89 on ostafen:feature/sql-permissions
into bbb1608 on codenotary:master.

[coveralls]

coverage: 89.388% (-0.04%) from 89.43%
when pulling 7b82f89 on ostafen:feature/sql-permissions
into bbb1608 on codenotary:master.

[coveralls]

coverage: 89.373% (-0.06%) from 89.43%
when pulling 955cf46 on ostafen:feature/sql-permissions
into bbb1608 on codenotary:master.