roslint: adding bash runtime dependency

Solves following warning:
QA Issue: roslint requires /bin/bash,
but no providers in its RDEPENDS [file-rdeps]
speech-tools: adding perl runtime dependency

Solves following warning:
QA Issue: speech-tools requires /usr/bin/perl,
but no providers in its RDEPENDS [file-rdeps]
Merge pull request #302 from KristofRobot/QA-fixes

Fixing various QA warnings