Rewrite in Rust (#3)

Just what the world needs, another silly Rust re-write! But it was a good exercise in learning.

There's a lot of messy things, which is why this is 0.2.0-pre.1. Going to make some cleaning passes after landing this.

resources/skel/_templates/photo.html

@@ -0,0 +1,54 @@
+{% extends "base.html" %}
+
+{% block js %}
+    // Do left/right navigation on keypresses
+    document.onkeydown = function(event) {
+        if (event.key == "ArrowLeft") {
+            {% if prev_image %}
+            location.href = "{{prev_image.html_filename}}";
+            {% endif %}
+        } else if (event.key == "ArrowRight") {
+            {% if next_image %}
+            location.href = "{{next_image.html_filename}}";
+            {% endif %}
+        }
+    }
+{% endblock %}
+
+{% block content %}
+<div id="photo">
+    <img src="{{image.screen_filename}}" />
+</div>
+
+<div id="nav">
+    <div>
+        {% if prev_image %}
+            <a href="{{prev_image.html_filename}}">
+                <i class="arrow arrow-left"></i>
+            </a>
+        {% endif %}
+    </div>
+    <div>
+        <a href="..">
+            <i class="arrow arrow-up"></i>
+        </a>
+    </div>
+    <div>
+        {% if next_image %}
+            <a href="{{next_image.html_filename}}">
+                <i class="arrow arrow-right"></i>
+            </a>
+        {% endif %}
+    </div>
+</div>
+
+<div id="photo-description" class="caption">
+    {% if image.description %}
+    {{ image.description | safe }}
+    {% endif %}
+</div>
+
+<div id="download">
+    <a href="../{{image.filename}}">view full size</a>
+</div>
+{% endblock %}