Now corrects for 'gmailcom' or 'whatevernet'.
Cleans up test suite; too many 'com' tests were coupled with gmail. Now they're in their own 'com' test.
Breaks main method into lots of smaller methods with descriptive names.
Added note about how it might be fine for Ruby 1.8.
Updates to readme: more comprehensive examples, fixed link to test file.
Updated test file; possibly redundant test, but including it to be safe.
Bump to 0.1.7. Makes sure 'gm.com' isn't converted to 'gmail.com'.
Adds tests for 'te.st@gmail.com' and 'test+spamfilter@gmail.com'.