fix(bower): Use right angular version spec

Also include full list of "release" files in "main" specification in
bower.json

lib/grunt/plugins.js

@@ -297,18 +297,29 @@ module.exports = function(grunt) {
   //     done();
   //   });
   // });
-
+
+  // Create the bower.json file
   grunt.registerTask('update-bower-json', function () {
     var currentTag = semver.clean( util.getCurrentTag() );
-    var jsonFile = path.resolve(process.cwd()) + '/dist/release/' + currentTag + '/bower.json';
+
+    var taggedReleaseDir = path.join(path.resolve(process.cwd()), 'dist', 'release', currentTag);
+
+    // Get the list of files from the release directory
+    var releaseFiles = fs.readdirSync(taggedReleaseDir)
+                         // Filter out minified files and the bower.json file, if it's there already
+                         .filter(function (f) { return !/\.min\./.test(f) && !/^bower\.json$/.test(f); })
+                         // Preprend "./" to each file path
+                         .map(function (f) { return './' + f; });
+
+    var jsonFile = path.join(taggedReleaseDir, 'bower.json');
 
     var json = {
       "name": "angular-ui-grid",
       "version": currentTag,
-      "main": "./ui-grid.js",
+      "main": releaseFiles,
       "ignore": [],
       "dependencies": {
-        "angular": ">= 1.2.16"
+        "angular": "~1.2.16"
       },
       "homepage": "http://ui-grid.info"
     };