Add bootstrap to package.json

Removes the need to have it as a submodule by just using it directly
from the package.json using a Git URL bound to v3.0.0

.gitmodules

@@ -1,6 +1,3 @@
-[submodule "vendor/bootstrap"]
-	path = vendor/bootstrap
-	url = https://github.com/twbs/bootstrap
 [submodule "vendor/apm"]
 	path = vendor/apm
 	url = https://github.com/atom/apm.git

Gruntfile.coffee

@@ -44,7 +44,7 @@ module.exports = (grunt) ->
   prebuildLessConfig =
     src: [
       'static/**/*.less'
-      'vendor/bootstrap/less/bootstrap.less'
+      'node_modules/bootstrap/less/bootstrap.less'
     ]
 
   csonConfig =

package.json

@@ -12,6 +12,7 @@
   "atomShellVersion": "0.4.7",
   "dependencies": {
     "async": "0.2.6",
+    "bootstrap": "git://github.com/twbs/bootstrap.git#v3.0.0",
     "coffee-script": "1.6.2",
     "coffeestack": "0.4.0",
     "first-mate": "0.1.0",