Initializing
Added permutation.R, added support for one-vs-all
Added roxygen comments.
Changed which.significant semantic
Split out t.test logic into separate file. Moved summary statistic and partitioning logic into support.R

Switched diffanal2 to use a dispatch-like strategy structure after cleaning the input.
Switched result design from S4 to S3 class to resolve issue with inheritance of [.data.table not behaving as expected.
Updated. t-test, limma, permutation t-test working.
Updated. Implemented Wrappers
Remove old code.
Moved do.summary code from support.R to summary.stats.R
Removed duplicate functions
Made tests more consistent. Made unique.diffanal.results handle unclassed columns better. Made diffanal.results handle descriptive columns uniformly.
wrapping up
Merge branch 'master' of https://github.com/mobiusklein/diffanal2