BLD: fix syntax errors in bento.info
BLD: fix Bento build issue with new .h.src templating.
TST: add Bento build to Travis CI runs.
MAINT: remove useless email notification in .travis.yml
DOC: update version number in bento.info
Merge pull request #4114 from rgommers/travis-bento

Fix Bento issues and add Bento build to Travis CI config