Try fix/update CI-settings

Author: josteink

.travis.yml

@@ -2,10 +2,15 @@ language: generic
 sudo: false
 
 env:
-  matrix:
-    - EVM_EMACS=emacs-24.4-travis
-    - EVM_EMACS=emacs-24.5-travis
-    - EVM_EMACS=emacs-git-snapshot-travis
+  - EVM_EMACS=emacs-24.4-travis
+  - EVM_EMACS=emacs-24.5-travis
+  - EVM_EMACS=emacs-25.1-travis
+  - EVM_EMACS=emacs-25.2-travis
+  - EVM_EMACS=emacs-git-snapshot-travis
+
+matrix:
+  allow_failures:
+    - env: EVM_EMACS=emacs-git-snapshot-travis
 
 before_install:
   - git clone https://github.com/rejeep/evm.git /home/travis/.evm