Set hostname in travis build.

Workaround for an issue with a discrepancy between 'localhost' and
'localhost.localdomain'.

This closes #36.

Author: frozencemetery

.travis.yml

@@ -5,6 +5,8 @@ python:
   - "3.4"
 
 install:
+  - "sudo sed -i '1i 127.0.0.1 test.box' /etc/hosts"
+  - "sudo hostname test.box"
   - "sudo apt-add-repository -y ppa:sssd/updates "
   - "sudo apt-get update -q"
   - "DEBIAN_FRONTEND=noninteractive sudo apt-get install -qq krb5-user krb5-kdc krb5-admin-server"