Merge pull request #1598 from quantopian/clean-up-naked-asserts

Clean up naked asserts

version 0.11.2

version 0.11.1

version 0.11.1rc2

version 0.11.1rc1

version 0.11.0

version 0.11a1

version 0.10.2

version 0.10.2rc3

version 0.10.2rc2