1.1.0
crypto: remove cryptojs
package: browserify now uses crypto-browserify 3.0.0
HDNode: indicate 2.x.y removal of Buffer interop
Merge pull request #275 from dcousens/byecjs

Remove crypto-js, https://github.com/dominictarr/crypto-browserify/pull/47 was merged.
package: crypto-browserify must be specified until browserify catches up
Merge pull request #282 from dcousens/nobuff

Deprecate Buffer interop in preparation for 2.0.0
Remove instanceof since we can't actually create the ecurve.Point