Issue:
plot_directive.py is not including possible ..image:: directive options (i.e. scale or align) when outputting to latex.

My Local Fix:
A partial fix is detailed below but it has one issue in that it will only parse one option through opts dictionary.

Details of Change:

{{ only_latex }}

   {% for img in images %}
       .. image:: {{ build_dir }}/{{ img.basename }}.pdf
   {% endfor %}

was updated to:

{{ only_latex }}

{% for img in images %}
       .. image:: {{ build_dir }}/{{ img.basename }}.pdf
      {%- for option in options %}
      {{ option }}
      {% endfor %}
{% endfor %}

Know Issue:
[1] Currently cannot specify more than one option as the parser introduces new lines in between each option when constructing the .. image:: directive environment. I don't see how opts works?