Revert "Fail with any bash syntax error in examples"
Revert "Fail with any bash syntax error in examples"

This reverts commit 25b03bac2277c3548a7794aa3e362c6ea1f33c09.

Need some more thoughts into it.

andyli/travis-build,kevmoo/travis-build,JuliaCI/travis-build,craigcitro/travis-build,craigcitro/travis-build,andyli/travis-build,kevmoo/travis-build,JuliaCI/travis-build