Add PHPBench to Travis-CI matrix
Add PHPBench to Travis-CI matrix

Also separating the execution of the tests from other tools.

Ocramius/doctrine2,Majkl578/doctrine2,lcobucci/doctrine2,tPl0ch/doctrine2,deeky666/doctrine2,TomasVotruba/doctrine2,localheinz/doctrine2,Ocramius/doctrine2,holtkamp/doctrine2,Sitetheory/doctrine2,TomasVotruba/doctrine2,deeky666/doctrine2,localheinz/doctrine2,Majkl578/doctrine2,stof/doctrine2,holtkamp/doctrine2,doctrine/doctrine2,gencer/doctrine2,Sitetheory/doctrine2,mikeSimonson/doctrine2,PowerKiKi/doctrine2,gencer/doctrine2,Ocramius/doctrine2,doctrine/doctrine2,aivus/doctrine2,PowerKiKi/doctrine2,mikeSimonson/doctrine2,bigfoot90/doctrine2,lcobucci/doctrine2,stof/doctrine2,tPl0ch/doctrine2,bigfoot90/doctrine2,aivus/doctrine2