Installl from legacy OpenCores svn repository

The w11 project started on OpenCores as project w11.

In October 2016 the repository was moved from OpenCores to GitHub. The full revision history was kept and can be accessed from GitHub wfjm/w11.

The OpenCores svn repository remains available and can also be used to retrieve old revisions:

to download tagged verions (from major releases) list available svn tags

  svn ls http://opencores.org/ocsvn/w11/w11/tags

and download one of them

  cd <install-dir>
  svn co http://opencores.org/ocsvn/w11/w11/tags/<tag>

to download specific svn revision (from minor releases) determine desired svn revsion from list given on http://opencores.org/project,w11,overview and download
```
  cd <install-dir>
  svn co -r <rev> http://opencores.org/ocsvn/w11/w11/trunk
```