Remove ivars from spec
s/should/expect/g
s/@grid/grid/g for readability
rbx-19mode → rbx for TravisCI

https://github.com/travis-ci/travis-ci/issues/1641
Attempt to get specs working with rbx on TravisCI
Attempt to fix coverage with rbx on TravisCI
No longer tolerate failure
Merge pull request #3 from johnsyweb/1_0_3

Version 1.0.3