Remove jsdoc from npm package

Fix #637

Author: Minggang Wang

.npmignore

@@ -0,0 +1,21 @@
+generated/
+Dockerfile
+appveyor.yml
+.travis.yml
+.coveralls.yml
+.gitmodules
+.circleci
+.clang-format
+.eslintrc.yml
+.istanbul.yml
+cpplint.py
+tsconfig.json
+build/
+dist/
+log/
+install/
+test/
+docs/
+example/
+benchmark/
+tutorials/