before r3525, if incoming html has <a href="#foo"> then the cajoler calls the PluginEnvironment's rewriteUri() with the uri "#foo".
after r3525, the cajoler calls rewriteUri() with a uri like "file://Users/felix8a/tmp/test.html#foo". is there any particular reason for the uri to be resolved before rewriteUri()? it complicates some types of rewriting, and it seems to me that it loses useful information. it's not possible now to find out what the original uri was.
