Move all content to page bundles

This allows me to use Hugo's image resizing to create img srcsets
where the client downloads an appropriate image depending on their
screen size.

I had to go back and find original photos for each of these posts
because Hugo was resizing my already-optimized versions and they
looked horrible. Unfortunately I couldn't find originals for these
posts:
  - aqaba-dirty-disappointing
  - contemporary-arab-design-jrf-showroom
  - eid-mubarak-neighborhood-dumpster
  - no-noise-near-noisy-mosque
  - red-orange-yellow-rice-bab-al-yemen

Hugo will fall back to looking in the static directory for these.

content/posts/emperor-hadrians-arch-jerash/index.md

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+categories = ["Architecture"]
+date = "2017-06-13T15:24:57+03:00"
+description = "Emperor Hadrian's Arch in Jerash is uniquely detailed and very well preserved."
+images = ["2017-06-06_101711.jpg"]
+tags = ["Jerash", "Greek", "Roman"]
+title = "Emperor Hadrian's Arch in Jerash"
+slug = "emperor-hadrians-arch-jerash"
+
++++
+
+{{<figure src="2017-06-06_101711.jpg" title="The Arch of Hadrian welcomes you to Jerash" alt="The Arch of Hadrian welcomes you to Jerash" >}}
+
+There are apparently two arches built around 130 CE to honor Roman Emperor Hadrian—one in [Athens](https://en.wikipedia.org/wiki/Arch_of_Hadrian_(Athens)) and one in [Jerash](https://en.wikipedia.org/wiki/Arch_of_Hadrian_(Jerash)). The former is undoubtedly more studied, but the latter is objectively more beautiful! Maybe it's the color of the stones in the afternoon light, the unconventional architectural features, or just the sheer size of it.
+
+<!--more-->
+
+In any case, it's hard to miss this large stone arch near the beginning of the Greco–Roman archaeological site as you enter Jerash. I recommend visiting in the morning or late afternoon hours, as the midday sun can be intense.