Lower connections in CI-test to prevent failures

Travis rotates between 10 IP's every few ms.. Madness. https://twitter.com/travisci/status/1085214062152159232
Because of that we can't use more than 2 connections, otherwise the newsservers get very cranky.

tests/test_functional.py

@@ -121,6 +121,12 @@ class SABnzbdDownloadFlow(SABnzbdBaseTest):
         if not ssl_imp.get_attribute('checked'):
             ssl_imp.click()
 
+        # Lower number of connections to prevent testing errors
+        self.driver.find_element_by_partial_link_text("Advanced Settings").click()
+        pass_inp = self.driver.find_element_by_name("connections")
+        pass_inp.clear()
+        pass_inp.send_keys(2)
+
         # Test server-check
         self.driver.find_element_by_id("serverTest").click()
         self.wait_for_ajax()