Themekraft/_tk — pull request #29 by davidajnered (2014-08-29 09:14:18+00:00)
Title: Fix incompatible declaration in navwalker

Got this error when I switched over to php 5.5.

```
Strict Standards: Declaration of wp_bootstrap_navwalker::start_lvl() should be compatible with Walker_Nav_Menu::start_lvl(&$output, $depth = 0, $args = Array) in bootstrap-wp-navwalker.php on line 150
```