Marks this version pyVmomi 2014.dev

All development versions should be marked with yyyy.dev to denote that they are unstable development versions. Release versions will be marked 5.5.0_2014.1 (release 1) and so on with whole integer release numbers after the year.
migrate from urllib2 to requests in the connect.py module. starting to
fix issue #13
reformat of soapadapter for pep8 cleaning.
remove all old style string formatting from Soapadapter.py and move to .format() syntax for python 3 compatibility
Fixes for Python 3 with 2to3

partial https://github.com/vmware/pyvmomi/issues/55
update samples for python3

Small changes related to python 3 compatability.

partial https://github.com/vmware/pyvmomi/issues/55