trans: when destructing transaction, write not only state, but also backend
file: fixed file_info timestamp reading
Merge pull request #535 from shaitan/master

Fixed garbage at unitialized vm statistics if procfs and sysctl are not available.
Merge pull request #536 from shaitan/master

recovery: fixed multiple open at one with (python2.6)
Merge pull request #537 from shaitan/master

recovery: added another one (last) fix for compatibility with python2.6 ...
Merge branch 'master' of github.com:reverbrain/elliptics
v2.26.3.27