probstats4econ 0.3.1

• Fix minor URL in docs

probstats4econ 0.3.0

• Updated datasets
• Added se_XXX family of functions from the book

probstats4econ 0.2.0

• Initial CRAN submission.
• Draft datasets for the book.
• Functions wald_test, linear_combination, linear_restrictions, and var_* helper functions