disable hash randomization for Python 3.3 and higher
default theme needs mako >= 0.7 (loop context)
forgot to import os in 2221c3b
add tox==1.4.2 to requirements.txt
Revert "remove check, deploy and pingback task"

Better to keep them within Acrylamid because of their complexity.

This reverts commit a9eaaa399127d437a81a7874b5367113f71c4124.