Update Maruku dependency to allow use of the latest version

[bhollis]

All Maruku releases post-0.6 follow semver, so they should be backwards-compatible on minor versions. In this case, the only test that needed to change was one that was asserting buggy behavior that was fixed in 0.7.1.

[parkr]

Looks like there are some test failures due to change in behaviour for the latest Maruku.

From my understanding of SemVer, and version pre-1.0, should be locked to PATCH level variation, thus ~> 0.7.0 would be most appropriate.

[bhollis]

My bad - you're right, we should require ~> 0.7.0. As for the test failures, I just ran be rake test and missed the cucumber tests, I'll fix them now. All the failures you're seeing are due to a regression in 0.7.0 that was fixed in 0.7.1, but the jekyll tests got updated to assert the bad behavior.

[parkr]

Cool, thanks! This LGTM. @benbalter, any final thoughts?

[benbalter]

Thanks @bhollis!