#1 Handler should recognize more protocols

[Don Brown]

The current o.i.p.svn.Handler.java only recognizes the
"svn" protocol, while there are other protocols which
are used to access a svn repository. The list should
include: "http", "https", and "svn+ssh".

I am currently using ivy+svn to retrieve jars from a
subversion repository which uses the https protocol.
My client is the command line client.

The attached patch adds this functionality and fixes
one small instance of a Java 5 method call that doesn't
need to be there.

[Don Brown]

Adds more protocols and fixes Java 1.4 compilation problem