General Subobjectclassifier
Removing the special case [hProp].
Cleaning up previous commit.
Merge branch 'master' of github.com:HoTT/HoTT
Removing BiInvPair
Merge branch 'master' of github.com:HoTT/HoTT
include predicate as redundant data in UnitSubuniverse
include induction principle as redundant data in Modality
make that bit of Freudenthal work
remove "using n" to make the proofs work.
revert some Univalences to Funexts
remove nearly all univalence in ReflectiveSubuniverse and Modality
Merge pull request #493 from mikeshulman/modalitydata

Include useful redundant data in modalities
trivial changes from @spitters
Merge pull request #495 from mikeshulman/master

trivial changes from @spitters
Merge pull request #487 from spitters/master

General Subobjectclassifier