Clean up npm package and git repo directory structures

.gitignore

@@ -1,8 +1,14 @@
-*sublime*
+# Make sure to exclude test data directory
+orbitdb/
+
+# Don't distribute the dependencies
 node_modules/
+
+# Don't track examples' dependencies (libs) in git
 examples/browser/browser-webpack-example/bundle.js
 examples/browser/browser-webpack-example/*.map
 examples/browser/lib
-dist/*.map
-dist/orbitdb.js
-orbitdb/
+
+# Don't track builds in git
+# Distribution builds are available via npm
+dist/

.npmignore

@@ -0,0 +1,16 @@
+# Make sure to exclude test data directory
+orbitdb/
+
+# Don't distribute the dependencies
+node_modules/
+
+# Don't distribute examples with the module
+# See examples at https://github.com/orbitdb/orbit-db 
+examples/
+
+# Don't distribute source maps
+dist/*.map
+
+# Don't distribute screenshot
+# See examples at https://github.com/orbitdb/orbit-db 
+screenshots/