Hmmm, whoever decided to call the unspecified revision "START"?
Free speech is all very well, but at least we could follow naming conventions.

* subversion/bindings/javahl/src/org/apache/subversion/javahl/types/Revision.java
  (Revision.UNSPECIFIED): Make an alias for Revision.START, so that developers
   familiar with Subversion's API have a chance of undertanding JavaHL, too.
  (Revision.toString): Handle the unspecified case.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1533928 13f79535-47bb-0310-9956-ffa450edef68