CustomDatasource: fixed build optimization issue with custom datasources, Fixes #994

src/plugins/datasource.example.js

@@ -19,7 +19,7 @@ function (angular, _, kbn) {
       this.url = datasource.url;
     }
 
-    CustomDatasource.prototype.query = function(filterSrv, options) {
+    CustomDatasource.prototype.query = function(options) {
       // get from & to in seconds
       var from = kbn.parseDate(options.range.from).getTime() / 1000;
       var to = kbn.parseDate(options.range.to).getTime() / 1000;

tasks/options/ngmin.js

@@ -10,6 +10,7 @@ module.exports = function(config) {
         'app/filters/**/*.js',
         'app/panels/**/*.js',
         'app/routes/**/*.js',
+        'plugins/**/*.js',
         'app/app.js',
         'vendor/angular/**/*.js',
       ],