Merge pull request #35 from tribal-tec/master

Bump versions
Add boost-system-dev package dependency
Merge pull request #36 from bilgili/master

Add boost-system-dev package dependency
Bump Equalizer version
Merge pull request #37 from jafyvilla/master

Bump Equalizer version
Update DisplayCluster to 0.4
Merge pull request #38 from rdumusc/master

Update DisplayCluster to 0.4
Add openmpi deb packages to execute unit test on travis