Add a timeout to requests

By default requests never times out, the problems with this are:

* The bot won't work after the internet connection comes back.
* If the internet connection goes out the only way to stop the bot will
  be to kill the process.

Author: paolobarbolini

botogram/api.py

@@ -95,7 +95,8 @@ def _session(self):
     def call(self, method, params=None, files=None, expect=None):
         """Call a method of the API"""
         url = self._endpoint + "bot%s/%s" % (self._api_key, method)
-        response = self._session().get(url, params=params, files=files)
+        response = self._session().get(url, params=params, files=files,
+                                       timeout=10)
         content = response.json()
 
         if not content["ok"]:

docs/changelog/0.4.rst

@@ -39,3 +39,9 @@ Performance improvements
 ------------------------
 
 * botogram now tries to reuse existing connections to Telegram when possible
+
+Bug fixes
+---------
+
+* Fix inability to fetch updates and stop the runner after an internet
+  connection outage.