chore: update package.json

- Update package.json with more information
- Improve .npmignore slightly

Closes #4993

Author: wesleycho

Diff for: .npmignore

@@ -24,8 +24,6 @@ template/**/*.js
 .git
 docs
 misc
-src
-template
 .editorconfig
 .gitattributes
 .gitignore
@@ -37,3 +35,6 @@ karma.conf.js
 ROADMAP.md
 
 dist/assets
+dist/index.html
+dist/versions-mapping.json
+dist/*-SNAPSHOT*

Diff for: package.json

@@ -4,6 +4,12 @@
   "version": "1.0.0-SNAPSHOT",
   "homepage": "http://angular-ui.github.io/bootstrap/",
   "dependencies": {},
+  "directories": {
+    "lib": "src/"
+  },
+  "files": [
+    "dist/", "src/", "template/"
+  ],
   "scripts":{
     "test": "grunt"
   },