Add missing dot files

Signed-off-by: Chris Aniszczyk <zx@twitter.com>

.gitignore

@@ -0,0 +1,2 @@
+.DS_Store
+node_modules/

.npmignore

@@ -0,0 +1,15 @@
+.git
+.gitignore
+16x16
+36x36
+72x72
+assets
+bower.json
+index.html
+node_modules
+preview-*
+test.*
+twemoji-*
+twemoji.amd.js
+twemoji.min.js
+twemoji.js

.travis.yml

@@ -0,0 +1,8 @@
+language: node_js
+node_js:
+  - 0.10
+git:
+  depth: 1
+branches:
+  only:
+    - gh-pages