Debian packaging is working again

It is now possible to build the .deb package and install and use it.

* The package name it builds is different (lwp-pyramid) and it it conflicts with existing lwp package (only one can be installed)
* The postinst script now creates /etc/lwp/lwp.conf on initial install
* A secret key is generated at install time that is unique (uses /dev/urandom)
* Number of workers is automatically configured to match number of CPU's at install time
* Only if this is the first install (if /etc/lwp/lwp.conf doesn't exist yet), then initialise the sqlite database in /var/lwp/lwp.db

Note that the python-pyramid-jinja2 deb package isnt't in Ubuntu 14.04 LTS for some reason, you will have to build it yourself.

I have also built a copy which I will eventually throw up on my PPA.