.travis.yml in stellar-base-0.1.4 vs .travis.yml in stellar-base-0.2.0

@@ -2,10 +2,10 @@
 rvm:
 - 2.2.0
 - 2.1.5
 - 2.0.0
 - 1.9.3
-- jruby-1.7.9
+- jruby-1.7.20
 - jruby-head
 script: bundle exec rake travis
 notifications:
   slack:
     secure: V/6a8KFe067uukrbCJA2R1HPO4xy0YSQ1pwmHVRi5StX+yl+lYsWWJdjdBdT0j3iJBYyPRqU4bQYck+OloxtELnrHCX+OkodxcxW8W/ACc914iIf0FyY9pnusK7ck2awmt4Iuf94YPgi0XTm1aCcm+f0yU7wiIVFpftoXSk1EDY=