Remove non-ascii character from config file.

This cost me about three hours of mucking about :-(
Fix passenger config to be more general.

We cna use the --snippet flag to get what we need.
Use ruby 1.9 for Portal.

This needed a number of updates including the use of local bundle installation
of the gem dependencies.
Use Taverna Server 2.5.1 snapshot.

There is a bug in 2.5.0 that stops it working properly in insecure mode.