Syntax for revisions
Revisions may be given in the same form as for the standard svn client. That means: number, keyword or date.
Number 	 A number greater or equal -1. -1 means unspecified revision, 0 is the beginning. Normally, these numbers should not be used (most operations will fail with that).
Keyword 	 One of
HEAD
BASE
COMMITED
PREV
START
WORKING
The keywords are case sensitive! For example, head is not the same as HEAD.
Date 	 Date in form {YYYY-MM-DD}. It must real MM or DD - ⪚ 2005-1-1 must be written as {2005-01-01}.
Appending a specific revision to an will always made via ?rev=revision.