Merge pull request #27 from wtsi-npg/master

pull changes from wtsi master (point release 73.8) to wtsi devel
Merge pull request #7 from wtsi-npg/devel

pull changes from wtsi devel to my devel
 - scripts that are linked from the main tracking web app are moved to this
     project together with an apache configuration file for servers on sfweb nodes
 - apache configuration file for sfweb nodes updated:
     bed files are not visible
     all tracking-related services sre run on port 9000, port 9080 is not used
     the cgi-bin url component is mapped to the cgi-bin directory underb the npg
       root /software/solexa/npg, where all npg cgi scripts are deployed to
     npg own modules are taken from the default deployment location,
       /software/solexa/npg/lib/perl5
     htdocs directory is mapped to the deployed /software/solexa/npg/htdocs
Merge pull request #28 from mgcam/devel

pull files needed for new-style deployment of sfweb apache servers to wtsi-devel
Merge pull request #29 from wtsi-npg/devel

pull request from wtsi devel to wtsi master to create point release 73.9