Update .npmignore

Author: dpvc

.npmignore

@@ -1,24 +1,28 @@
 *~
+.DS_Store
+.travis.yml
 node_modules
 attic
+components/dist
+components/samples
 doc
 lib
+mathjax2/css
 mathjax2/input/TeX.d.ts
 mathjax2/input/TeX.js
 mathjax2/legacy/extensions
 mathjax2/legacy/jax/input/MathML
 mathjax2/legacy/jax/input/TeX
 mathjax2/legacy/jax/output
+mathjax2/legacy/MathJax.js
 mathjax2/output
 samples
 tests
 tests.sh
 tools
 tex_interactive.js
-Mml-lab.html
-Mml-lab.js
-TeX-lab.html
-TeX-lab.js
 load.html
 load.js
+load.mjs
 main.js
+v3-lab.html