howto: set up a cyrus development environment

[Conrad Kleinespel]

Hello guys and girls,

Ellie, thanks a lot for the instructions. Building Cyrus and Cassandane
worked just fine on Ubuntu 15.10 :-)

However, when running the tests with "./testrunner.pl -f pretty -j 8", I
get 1 failure and 182 errors in 252 tests. That seems odd. I see no
specific error messages in syslog or elsewhere, so I'm thinking I must
be missing something. Have any of you experienced this ?

Installing arcanist on Ubuntu was apparently as easy as "sudo apt-get
install arcanist". I'll see about actually using it together with
Phabricator when I make my first commit.

Best regards,

Conrad Kleinespel
conradk at conradk.com