update dependency for shakespeare
Merge pull request #17 from cosmo0920/update-dependency-shakespeare

update dependency for shakespeare
Version bump
use Travis CI
Merge pull request #18 from cosmo0920/travis

add travis settings
Remove workaround for temporary, add one for texmath

- https://github.com/jgm/pandoc/issues/1482
- http://hackage.haskell.org/package/texmath/preferred
- Version constraint requires Cabal >= 1.8
Version bump