Updated Person class to use the options hash to specify gender or seed instead of having multiple methods.
Removed 2.1.1 and 2.1.0 from .travis.yml and replaced it with just 2.1 for the time being as there is a RVM bug preventing CI.
Added 2.1.1 back to .travis.yml as it appears to continue working and the RVM bug is just an issue with 2.1.0 having the .0
Apparently 2.0.0 is also problematic, so just use 2.0. Also added 1.9.3 to the testing.
Fixed typo in README. [ci skip]
Bumped version to 1.0.0