update npmignore

Author: Julian Kern

.npmignore

@@ -1,7 +1,11 @@
 !dist/
-/test/
+test.html
+can-ajax-test-result.json
+can-ajax-test-result.txt
+can-ajax-test.js
+build.js
+.travis.yml
+.jshintrc
+.editorconfig
 /.idea/
-/can-ajax-test.js
-/can-ajax-test-result.json
-/can-ajax-test-result.txt
-/test.html
+/test/