[interchange] Add Perl versions 5.24 & 5.26 to TravisCI

[Josh Lavin]

commit 1a6f02f6b80619c46838daa42a52a4a2ed088324
Author: Josh Lavin <digory at cpan.org>
Date:   Mon Jul 24 16:40:22 2017 -0700

    Add Perl versions 5.24 & 5.26 to TravisCI
    
    - also don't specify point-release on 5.10 (allow TravisCI to use
      pre-built latest)

 .travis.yml |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/.travis.yml b/.travis.yml
index 08dc97f..aba8ea2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,13 +1,15 @@
 language: perl
 perl:
   - "5.8.9"
-  - "5.10.1"
+  - "5.10"
   - "5.12"
   - "5.14"
   - "5.16"
   - "5.18"
   - "5.20"
   - "5.22"
+  - "5.24"
+  - "5.26"
 sudo: false
 services:
   - mysql