ENH: carry a copy of pstats.py from python 2.6.7 for systems lacking it
add always_clean option
ENH: option to run only the latest commit
FIX: default run_option and docstring
PEP8 all over
Merge branch 'master' into last-commit
FIX: return array of revisions
added BenchmarkSuite discovery
Merge pull request #21 from vene/last-commit

New run option: last commit
Merge remote-tracking branch 'origin/master'

* origin/master:
  added BenchmarkSuite discovery
  FIX: return array of revisions
  PEP8 all over
  FIX: default run_option and docstring
  ENH: option to run only the latest commit
  add always_clean option

Conflicts:
	vbench/benchmark.py -- pep8-ification, fixed in our changes