Allow users to silence warnings from getDataUrllib2

Requiring Updated pyOpenSSL in setup.py only, to fix pip installations on systems where OpenSSL is more up to date.  CIT cluster is still running on pyOpenSSL 0.13.1, but the OpenSSL version is old enough that this still is functional, so we will not update the requirements in the RPM or Debian packaging files yet.

since they all raise an exception in the end anyway

WIP: Use six module to provide py3x compatibility

for python3 compatibility

Removed unused imports

Updated more exception syntax for python3

for python3 compatibility

Updated exception syntax for python3

for python3 compatibility

for python3 compatibility

allows building correct rpm in virtualenv

this change makes the DQSegDBInstall command a bit more standalone, and a bit more robust, by having it take care of appending the etc files to the data_files list itself, rather than having to manually specify them in the `setup()` call

Use pyOpenSSL instead of M2Crypto for X509 validation

don't use `sys.exit(1)`

M2Crypto isn't available for python3

Bump version number

Require glue from PyPi

Update build for python3

first release with python3 compatibility, not python26 compatible

isn't actually required for those parts of glue being used here (I think)

Fix module shadowing by function argument

I changed the import so that the API is unchanged.
Fixes #17 and #28.