We had a handful of copy/pasted checks in hosting services that either

weren't properly checking for the data in responses fully, or were

checking incorrectly. This change attempts to bullet-proof many of our

checks full responses (commits to commits or dicts to dicts) instead of

partial responses (just specific attributes/keys of objects), and fixes

the commit checks to specifically compare diffs (which aren't taken into

consideration during equality checks).

Unit tests pass.