Removed jruby 1.8 mode from the build matrix because of ruby 1.8 test issues
Removed jruby 1.8 mode from the build matrix because of ruby 1.8 test issues

At least we have mri 1.8 in the build matrix. Better than nothing

RST-J/json-schema,openc/json-schema,ganeshkumar/json-schema,iainbeeston/json-schema,ruby-json-schema/json-schema,openc/json-schema