[Live-demo] ncWMS installer added

[Guy Griffiths]

I have just submitted an installer for ncWMS.  Once some shared NetCDF 
data has been finalised, a configuration file will need to be updated 
but this is part of the tar.gz downloaded by the installer, and so will 
not affect the install script.

I have also submitted some placeholder documentation which will be 
updated in the near future.

Regards,

Guy Griffiths