Generate all gallery and photo pages from yaml datafiles

_data/gallery/2014-bike.yml

@@ -1,4 +1,63 @@
-- 86b9f8a
-- 2723e35
-- 6f13c66
-- 2112cd6
+title: Bike
+date: 2014-09-01
+map:
+  latitude: 56.330378520833
+  longitude: -2.8099610208333
+  zoom: 8
+photos:
+  86b9f8a:
+    aperture: f/2.0
+    date: 2014-09-01 19:38:50
+    exposure: 60009/1000000
+    file: IMG_20140901_193849
+    location:
+      latitude: 56.330402361111
+      longitude: -2.8099718055556
+    model: One S
+    sizes:
+      640w: { height: 480, width: 640 }
+      200x200: { height: 200, width: 200 }
+      96x96: { height: 96, width: 96 }
+    make: HTC
+  2723e35:
+    aperture: f/2.0
+    date: 2014-09-01 19:47:29
+    exposure: 69998/1000000
+    file: IMG_20140901_194729
+    location:
+      latitude: 56.330387111111
+      longitude: -2.8100693333333
+    model: One S
+    sizes:
+      640w: { height: 480, width: 640 }
+      200x200: { height: 200, width: 200 }
+      96x96: { height: 96, width: 96 }
+    make: HTC
+  6f13c66:
+    aperture: f/2.0
+    date: 2014-09-02 08:14:08
+    exposure: 10007/1000000
+    file: IMG_20140902_081408
+    location:
+      latitude: 56.33032225
+      longitude: -2.8096828333333
+    model: One S
+    sizes:
+      640w: { height: 480, width: 640 }
+      200x200: { height: 200, width: 200 }
+      96x96: { height: 96, width: 96 }
+    make: HTC
+  2112cd6:
+    aperture: f/2.0
+    date: 2014-09-02 19:24:33
+    exposure: 39993/1000000
+    file: IMG_20140902_192432
+    location:
+      latitude: 56.330402361111
+      longitude: -2.8101201111111
+    model: One S
+    sizes:
+      640w: { height: 480, width: 640 }
+      200x200: { height: 200, width: 200 }
+      96x96: { height: 96, width: 96 }
+    make: HTC