Added basic plugin features
Updated Plugin utilities
Added GenotypeTableUtils class and class for reading phenotypes
Added additional GenotypeTableUtils methods
Added methods to get GLM working
Updated DataSet, Plugin
Updated DataSet, Plugin
Updated DataSet, Plugin
Updated DataSet, Plugin
Added everything to make GLM work
Finished easy_GLM
Added shorted genotype file
Update documentation
Fixed Assertion error in base __init__.py
Fixed error in base __init__ on mac
Merge branch 'feature/plugin' into develop