Update base-files

2017.1/base-files-2016/debian/changelog

+base-files (2018.01.1) stretch; urgency=medium
+
+  * Version bump
+
+ -- Jonathan Carter <jcc@debian.org>  Tue, 08 May 2018 09:27:00 +0200
+
 base-files (2017.06.1) stretch; urgency=medium
 
   * Add AIMS vendor file

2017.1/base-files-2016/etc/issue

-AIMS Desktop 2017.1 (Debian 9.0)
+AIMS Desktop 2018.1 (Debian 9.4)

2017.1/base-files-2016/etc/issue.net

-AIMS Desktop 2017.1 (Debian 9.0)
+AIMS Desktop 2018.1 (Debian 9.4)

2017.1/base-files-2016/etc/os-release

-PRETTY_NAME="AIMS Desktop 2017.1"
+PRETTY_NAME="AIMS Desktop 2018.1"
 NAME="AIMS Dekstop #OSNAME#"
 ID=aims
 HOME_URL="https://help.aims.ac.za/"