Move isgd.py to shorturl.py and switch back to using bit.ly

bot.conf.example

@@ -75,3 +75,6 @@ spotify-client-secret    =
 
 # https://opencagedata.com/users/sign_up
 opencagedata-api-key     =
+
+# https://bitly.com/a/oauth_apps
+bitly-api-key            =

modules/shorturl.py

@@ -1,9 +1,13 @@
+#--require-config bitly-api-key
+
 import re
 from src import ModuleManager, utils
 
-ISGD_API_URL = "https://is.gd/create.php"
+URL_BITLYSHORTEN = "https://api-ssl.bitly.com/v3/shorten"
 
 class Module(ModuleManager.BaseModule):
+    _name = "Short"
+
     def on_load(self):
         self.exports.add("shortlink", self._shortlink)
 
@@ -11,11 +15,12 @@ class Module(ModuleManager.BaseModule):
         if not re.match(utils.http.REGEX_URL, url):
             url = "http://%s" % url
 
-        page = utils.http.request(ISGD_API_URL, get_params=
-            {"format": "json", "url": url}, json=True)
+        page = utils.http.request(URL_BITLYSHORTEN, get_params={
+            "access_token": self.bot.config["bitly-api-key"],
+            "longUrl": url}, json=True)
 
-        if page and page.data["shorturl"]:
-            return page.data["shorturl"]
+        if page and page.data["data"]:
+            return page.data["data"]["url"]
 
     @utils.hook("received.command.shorten")
     def shorten(self, event):