How about this 'iterate' simple iteration tag

# Include
- iteration tag
- no testing code, sorry about my poor skill :(  

plz, make better one. 

# Usage
```
<select id="birth_year" name="birth_year">
    {% set stYear = 1950 %}
    {% set edYear = 1999 %}
    {% iterate item with stYear to edYear %}
    <option value="{{ item }}">{{ item }}</option>
    {% enditerate %}
</select>
```

# Comment

I love this killing 'swig' template for node.
this good for me. I used this all my project. 
some time I have needed simple iteration tag
Is this useful? nor drop request. 
I don't care for

Always thanks this code :)