Separate out YAML front matter from new posts

This is needed by the bitly script that adds the short link.

content/personal/2013/01/tarra-valley-and-wilsons-prom.mkdn

@@ -1,18 +1,3 @@
----
-title: Tarra Valley and Wilsons Promontory
-extra: Photos from a trip to The Tarra Valley and Wilsons Prom after Christmas 2012.
-kind: article
-section: personal
-created_at: 2013-01-13 16:21:00
-keywords: 
-- trip
-- photos
-- wilsons
-- promontory
-- tarra
-- valley
----
-
 On Boxing Day 2012 I went on a road trip with a few friends to the Tarra
 Valley in Victoria's south east. We stayed at the [Tarra Valley Caravan
 Park][fernholme] "Fernholme" just outside the [Tarra-Bulga National Park][tarra-bulga].

content/personal/2013/01/tarra-valley-and-wilsons-prom.yaml

@@ -0,0 +1,14 @@
+---
+title: Tarra Valley and Wilsons Promontory
+extra: Photos from a trip to The Tarra Valley and Wilsons Prom after Christmas 2012.
+kind: article
+section: personal
+created_at: 2013-01-14 03:21:00.000000000 +11:00
+keywords:
+- trip
+- photos
+- wilsons
+- promontory
+- tarra
+- valley
+short_url: http://j.mp/XuVqHD

content/technical/2013/01/speed-up-slow-ios-downloads-with-proxy.mkdn

@@ -1,20 +1,3 @@
----
-title: Speed Up Slow Downloads on iOS with a Proxy or CDN
-extra: Using a proxy or CDN can dramatically improve download speeds on an iOS device.
-kind: article
-section: technical
-created_at: 2013-01-13 12:39:00
-keywords: 
-- ios
-- proxy
-- slow
-- download
-- podcast
-- squid
-- launchd
-- cdn
----
-
 Whilst developing the [Radiopaedia iOS app][radiopaedia-app] I ran
 into the problem of very slow download speeds within the app. The app
 has packs of content available for purchase and download. The download

content/technical/2013/01/speed-up-slow-ios-downloads-with-proxy.yaml

@@ -0,0 +1,16 @@
+---
+title: Speed Up Slow Downloads on iOS with a Proxy or CDN
+extra: Using a proxy or CDN can dramatically improve download speeds on an iOS device.
+kind: article
+section: technical
+created_at: 2013-01-13 23:39:00.000000000 +11:00
+keywords:
+- ios
+- proxy
+- slow
+- download
+- podcast
+- squid
+- launchd
+- cdn
+short_url: http://j.mp/XuVqXT