Added IRC channel info!
Updated the installation getting started guide

Mostly spelling fixes and some small clarifications.
Add make target for building testing repo

Part of #359
Add testing distribution and upload 0.19 to it

Part of #359.
Add v0.19.0 to debian stable repo
Update getting started installation guide

with updates on the installation of nipap-www which is now assisted by
automagic.
Foo
Update the installation instructions

Add a section clarifying the use of the local user for the web interface
and that another user should be added for the user(s) to login with.

Various other clarifications.

Thanks to Dominik Sommerhalder for pointing out some of the issues with
the installation guide.
Add 0.19.1 to nipap testing apt repo
Add 0.19.1 to nipap stable apt repo
Add v0.20.0 to nipap test apt repo
Add nipapd 0.20.1 to nipap test apt repo
Add v0.20 to nipap stable apt repo
Add v0.20.2 to nipap test apt repo
Add v0.20.2 to nipap stable apt repo
Add v0.20.2 of nipap-www to apt repos
Update documentation.html