Merge pull request #509 from ijon/handystats

Instrumentation with handystats and replacement of react
spec: fixed bogus dates
Fix some PEP8 warnings. Bad identation is fixed.
[dc_recovery] Fix variable name: it was undefined name
Merge pull request #541 from noxiouz/tiny_fixes

Tiny fixes
auth: check client version at first and send self version only to client with right version.
Merge pull request #542 from shaitan/master

auth: check client version at first and send self version only to client...
spec: handystats dependency updated to 0.10