sketch out caretList function
robust buildModels function in place with tests
sketch out predicting across missingness
patching up tests and passing them
fix it so model weights for each prediction are output in NA case
Merge pull request #6 from jknowles/Dev

buildModels framework
Merge pull request #7 from jknowles/NAensemble

Ensembling across missing data
add summary method and S3 method support
doco push for caretList
revamp doco with roxygen
squashing doco bug
Merge pull request #9 from jknowles/Dev

Dev