Add a travis config, testing against Python 2.6/2.7
Add some short development notes, add simple tests and fix typo in readme.

The tests are based on the usage description in the readme file and test
each public API, while trying to assume as little as possible about the
actual underlying, possibly changing data.
Updated mcc/mnc list from Wikipedia
Merge pull request #5 from hannosch/updated_operator_list

Updated mcc/mnc list from Wikipedia
Merge pull request #2 from hannosch/add-tests

Add some short development notes, add simple tests and fix typo in readme
Merge pull request #3 from hannosch/travis

Add a travis config, testing against Python 2.6/2.7
bump to 0.2.2