To have update on template and controller modification, you need this on your web.xml :
<context-param>
<param-name>juzu.run_mode</param-name>
<param-value>live</param-value>
</context-param>
<context-param>
<param-name>juzu.src_path</param-name>
<param-value>/your/source/path/</param-value>
</context-param>
Benjamin