LIBDRUM-217. Configure Authentication

1. Updated authentication.cfg to refer authentication plugins from the build.properties
2. Updated authentication-p.cfg to refer campus addresses from the build.properties
3. Updated dspace.cfg to refer authentication plugins/ip configuration from the build.properties
4. Updated local.properties template to include plugin sequence and ip configuration.
5. Updated local installation document

https://issues.umd.edu/browse/LIBDRUM-217
Merge branch 'drum-develop' of github.com:umd-lib/drum into drum-develop