Fix matchit functionality

[icook]

This is an old file plugin that I managed to dig up that makes matchit work for Jinaj2 templates. There's probably some un-needed stuff in there, but it hasn't broken anything for me.

[aidos]

This is extremely useful. Would be great if it could be merged into the main project. For the moment I'm going to switch to icook's repo to get this behaviour..

[ypid]

:+1:

But I had some problems with matching the following:

{% if (apt is defined and apt) and apt != True %}
Acquire::http::Proxy "http://{{ apt }}:{{ apt_acng_port | default('3142') }}/";
Acquire::https::Proxy "false";
{% endif %}

So I am using the fork from chase who found a fix for this.

[ernstki]

@icook Was this PR meant to enable % matching on Jinja control flow like {% if … %} and {% for … %}, or just to get % working for HTML tags again?

If the latter, I think #19 already addressed % for HTML tags (works for me with the latest master anyway), in which case this PR could be closed.

[icook]

@ernstki Hard to remember honestly, but by my read it was specifically for Jinja2. The aforementioned fork from chase sounds like a more robust solution.