Added permission constants to be used when creating roles and enforcing policies
Merge pull request #28 from jjulien/permissions

Added permission constants to be used when creating roles and enforcing policies
Shifting all permission bits one to the left so the first permission is not 0
Merge pull request #29 from jjulien/permissions

Shifting all permission bits one to the left so the first permission is not 0
Undoing previous permission bit modification

1 << 0 == 1, my mistake, I saw the 0 and didn't evaluate it all the way out
Merge pull request #30 from jjulien/permissions

Undoing previous permission bit modification