Adding 32 bits path to avahi paths

Currently we were looking only into 64 bits path for finding the avahi library.
This fix adds at least the 32 bits path from ubuntu to the resolution.

(cherry picked from commit 2173b48b3ff91e3f61efbc6687350e3607115beb)
Post-release version bump
Implement random calling of optimized OpenDB with an optional env var
Merge pull request #933 from jeffali/port35x/TcOptimizeEnvVar

Port35x/tc optimize env var
Fix for building on HPUX

The current HPUX machine has very little space, creating
both a tdb and a qdbm database for testing makes it run out
of space.
(cherry picked from commit 05a7e7c36b36801a5d16d64df96c8fc331efc4c4)