Added fabfile for easy deployment.

fabfile.py

@@ -0,0 +1,29 @@
+import datetime
+from fabric.api import *
+from fabric.contrib import files, console
+
+env.runtime = 'production'
+env.hosts = ['readthedocs.org']
+env.user = 'docs'
+env.code_dir = '/home/docs/sites/readthedocs.com/checkouts/tweezers'
+env.virtualenv = '/home/docs/sites/readthedocs.com'
+env.rundir = '/home/docs/sites/readthedocs.com/run'
+
+def update_requirements():
+    "Update requirements in the virtualenv."
+    run("%s/bin/pip install -r %s/pip_requirements.txt" % (env.virtualenv, env.code_dir))
+
+def push():
+    "Push new code, but don't restart/reload."
+    local('git push origin master')
+    with cd(env.code_dir):
+        run('git pull origin master')
+
+def reload():
+    "Reload the server."
+    with cd(env.code_dir):
+        run("kill -HUP `cat %s/gunicorn.pid`" % env.rundir)
+
+def restart():
+    "Restart (or just start) the server"
+    run("~/run_gunicorn.sh")