v1.8.2

GLM v1.8.2

Diff since v1.8.1

Closed issues:

• GLM fails when Matrix contains a single column (#515)
• Method 1 and 2 produce different results for the same data (#516)

Merged pull requests:

• Get rid of TableRegressionModel by storing formula directly in model (#339) (@nalimilan)
• fix docstring of glm (#506) (@heliosdrm)
• add compat for statsmodels 0.7 (#512) (@kleinschmidt)
• Set minimum Julia version to 1.6 (#514) (@ararslan)