#325 Reverting to revision without comment throws error

[Alex Chapin]

When reverting to a earlier revision, if no revision comment entered, then error thrown:

PERMISSION_DENIED: Required request token does not match. Cannot Execute this action.

[Adam Franco]

Logged In: YES
user_id=789554
Originator: NO

Fixed in Segue 2.1.0, pull S, H, P.