* which is interpreted as how many revision back from the current
* one do we want. rev=0 is reserved for the last (committed) revision.
* We need rev to be string, since in various VCS revision is not integer.
* which is interpreted as how many revision back from the current
* one do we want. rev=0 is reserved for the last (committed) revision.
* We need rev to be string, since in various VCS revision is not integer.