chore: bump version to 0.6.4, update changelog

CHANGELOG.md

@@ -1,3 +1,12 @@
+<a name="0.6.4"></a>
+## [0.6.4](https://github.com/opensheetmusicdisplay/opensheetmusicdisplay/compare/0.6.3...0.6.4) (2018-11-14)
+
+### Features
+
+* **export:** export all classes for TS import ([#458](https://github.com/opensheetmusicdisplay/opensheetmusicdisplay/issues/458)) ([3364b52](https://github.com/opensheetmusicdisplay/opensheetmusicdisplay/commit/3364b52))
+
+
+
 <a name="0.6.3"></a>
 ## [0.6.3](https://github.com/opensheetmusicdisplay/opensheetmusicdisplay/compare/0.6.2...0.6.3) (2018-11-08)
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "opensheetmusicdisplay",
-  "version": "0.6.3",
+  "version": "0.6.4",
   "description": "An open source JavaScript engine for displaying MusicXML based on VexFlow.",
   "main": "build/opensheetmusicdisplay.min.js",
   "typings": "build/dist/src/",