Fixed architecture detection test on ci appveyor

The `cyg-apt update` command must be executed with the tested Python.
Fixed the argparser test

The tearDown method was not define properly.
Fixed the license abbreviation
Merge pull request #52 from alquerci/fix/license_abbreviation

Fixed the license abbreviation
Added test for the result of the `setup` command
Fixed Windows platform for build the library

When the `--plat-name` option is empty the resulting tar file name:
    - Windows: <program name>-<version>.tar
    - Cygwin:  <program name>-<version>..tar

So we need to specified the platform.

Maybe it's better to use only a marker instead of the real platform.
Merge pull request #37 from alquerci/fix/win_build

Fixed Windows platform for build the library
Merge pull request #44 from alquerci/fix/ci/appveyor

Fixed architecture detection test on ci appveyor
Merge pull request #45 from alquerci/fix/test/argparser_tearDown

Fixed the argparser test
Merge pull request #53 from alquerci/ipv/test/setup

Added test for the result of the `setup` command
Added a backward compatibility for `skipTest` method for python 2.6