Remove Ruby 1.8.7 from Travis tests
Remove Ruby 1.8.7 from Travis tests

ipmobiletech/tinymce-rails,RakeshTejra/tinymce-rails,spohlenz/tinymce-rails,heaven/tinymce-rails,ChouAndy/tinymce-rails,blenderbox/tinymce-rails,dziemian007/tinymce-rails,blenderbox/tinymce-rails,heaven/tinymce-rails,heaven/tinymce-rails,crowdbase/tinymce-rails,spohlenz/tinymce-rails,afar/tinymce-rails,crowdbase/tinymce-rails,dziemian007/tinymce-rails,prpetten/tinymce-rails,prpetten/tinymce-rails,ChouAndy/tinymce-rails,spohlenz/tinymce-rails,ChouAndy/tinymce-rails,prpetten/tinymce-rails,RakeshTejra/tinymce-rails,crowdbase/tinymce-rails,ipmobiletech/tinymce-rails,alexandred/localoids-tinymce-rails,afar/tinymce-rails,alexandred/localoids-tinymce-rails,ipmobiletech/tinymce-rails,RakeshTejra/tinymce-rails,dziemian007/tinymce-rails,afar/tinymce-rails,alexandred/localoids-tinymce-rails