Fixup permutation IDs so they match the index into the permutation array (and
therefore the arguments to -perms).  This is important so the generated JS
files have ids which match the arguments to -perms.

Patch by: jat, scottb
Review by: scottb, jat


git-svn-id: https://google-web-toolkit.googlecode.com/svn/releases/1.6@4360 8db76d5a-ed1c-0410-87a9-c151d255dfc7