Added `{R}` tag to readme
modified extractBestPreds to handle NAs present in adaptive_cv
Merge pull request #95 from rlesca01/master

modified extractBestPreds to handle NAs present in adaptive_cv
Added adaptive methods to caretList

caretList can now handle the adaptive boot, cv, and LGOCV methods,
thanks to #95.  They’ve been added to the auto indexing function and
tests have been added for all supported cv methods
Merge pull request #96 from zachmayer/adaptive_cv

Added adaptive methods to caretList
Moved all "list_of_models" functions to caretList
Use "is" to check classes
multiPredict to predict.caretList

Also rebuilt docs
replaced multiPredict with predict.caretList

May need to coerce some objects to caretList class.

Updated docs
Replaced multiPredict with predict in tests
Updated data builders to use new API
Fixed an issue with caretList's docs
moved data to test data

The test datasets are messy and we don’t want to document them lol.
Trying to fix tests now
Switched back to old data file

We’ll need to figure out how to get the data creation script to build
this file
Revert "Switched back to old data file"

This reverts commit b42885196a959376ad9bd9504b2a6a3e562674fa.
Fixed more failing tests
Fixed more test failures
rebuilt test data
Moved data to test data

lol