Merge pull request #18 from sphaero/master

Minor fixes pyZOCP major fixes BpyZOCP
Merge pull request #19 from sphaero/master

fix delete on exit
Merge pull request #20 from sphaero/master

Some essential fixes & improvements
Merge pull request #21 from sphaero/master

added a refresh method, made uit button call refresh method
Update minimal Python version for windows

pyre requires Python 3.4 as a minimum on Windows, see https://github.com/zeromq/pyre/issues/16
new pyre also sends node name
Merge branch 'master' of https://github.com/z25/pyZOCP