[gmime] automake1.15 is apparently not a valid package

[Jeffrey Stedfast <fejj src gnome org>]

commit c7c04b7f1056e112ab043c373fada77b070bcc62
Author: Jeffrey Stedfast <jestedfa microsoft com>
Date:   Fri Mar 3 09:50:43 2017 -0500

    automake1.15 is apparently not a valid package

 .travis.yml |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/.travis.yml b/.travis.yml
index e1ac59a..f452939 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,8 @@ compiler:
 sudo: required
 before_install:
   - sudo apt-get -qq update
-  - sudo apt-get install -y automake1.15 gtk-doc-tools gnome-doc-utils libgpgme11 libgpgme11-dev gpgsm
+  - sudo apt-get install -y automake gtk-doc-tools gnome-doc-utils libgpgme11 libgpgme11-dev gpgsm
 script:
+  - automake --version
   - ./autogen.sh
   - ./configure --disable-mono && make && make check