v0.2.3

Changelog

139e6aa Update .travis.yml and setup.py
5225518 Change error messages
90846dc Update .travis.yml
13c4585 Update setup.py
e652bf9 Remove Makefile
957b42a Remove scripts
82b5ee6 Update setup.py
1f0dea7 Add setup.py and update src/glm.nim
09c77b7 Update README.md
93c51cf Add tests
b6c2e59 Update data for tests
49306a8 Add dump to python module
0b8ae03 Support writing out to glm