Some features of bitcore will be too large to be included in the browser bundle
by default. Since BIP39 pretty much requires the giant list of words to be
used, I am excluding it by default. The ability to exclude some features by
default will become useful with some particularly large features to come,
particularly BIP70.
Bitcore in Copay is not being installed correctly due to changes we made
recently in the way bitcore is compiled (it is not compiled on install, but on
prepublish). This adds all the bundles to the repo to fix that issue.