rvm:
 - 2.0.0
 - 2.1.6
 - 2.2.2
 - 2.2.3
 - ruby-head
notifications:
  recipients:
    - jarmo.p@gmail.com
matrix:
  allow_failures:
    - rvm: ruby-head

rvm:
 - 2.0.0
 - 2.1.7
 - 2.2.3
 - ruby-head
notifications:
  recipients:
    - jarmo.p@gmail.com
matrix:
  allow_failures:
    - rvm: ruby-head

Update rubies used in Travis.
Update rubies used in Travis.
