add in giphy (.gif query)

plugins/gif.py

@@ -0,0 +1,19 @@
+from util import hook, http
+
+
+@hook.api_key('giphy')
+@hook.command('gif')
+@hook.command
+def giphy(inp, api_key=None):
+    '''.gif/.giphy <query> -- returns first giphy search result'''
+    url = 'http://api.giphy.com/v1/gifs/search'
+    try:
+        response = http.get_json(url, q=inp, limit=1, api_key=api_key)
+    except http.HTTPError as e:
+        return e.msg
+
+    results = response.get('data')
+    if results:
+        return results[0].get('bitly_gif_url')
+    else:
+        return 'no results found'