Initial messy version of Facet code
Factor out the iteration from Facet map
Initial rough implementation of factorplot
More work on factorplot, still a mess
Start lmplot refactor to use FacetGrid (undecided on name still)
Adding robust and partial to new regplot
Mostly rounding out new regplot
Add dropna to FacetGrid
Allow for label in boxplot and distplot
Add test for linearmodel functions
Add new FacetGrid-based lmplot; add dropna to factorplot
Remove old lmplot and regplot code
Change link to join in factorplot
Some FacetGrid docstring
Add tests and docstrings to FacetGrid
Ironing out FacetGrid API
Let rugplot work with Series data
Make col_wrap actually work in FacetGrid
Fix col_wrap axes indices in factorplot
Fix col_wrap parameter in lmplot