Docs for some packages are mixed up with those of other packages

[ghost]

I've found two examples of this happening:

• http://hackage.haskell.org/package/gloss-1.8.1.1/docs/ (gloss mixed up with binary)
• http://hackage.haskell.org/package/llvm-general-3.3.8.2/docs/ (llvm-general mixed up with bytestring)

[dcoutts]

This is the same issue as #145, we "just" need to identify all the existing docs that are affected and delete them and let them be rebuilt.

[gbaz]

Those old docs no longer display as docs on the main package pages of those two packages (at those versions even). Without any others I see needing to be fixed up, going to close this