Compiles with vibe-d 0.10.x.

Revert the use of countDocuments, as the current implementation is bu…

…ggy.

Merge pull request #17 from rejectedsoftware/housekeeping

Avoid deprecated MongoDB APIs

Merge pull request #16 from rejectedsoftware/comment_index

Add a comment database index

Warnings/error fixes

Can be used with vibe.d 0.9.x.

Updated to DMD 2.088.0 and added the possibility to mark all comments…

… of a topic as spam.

Warnings fixes and fixed CI build.

Compile fix for vibe.d 0.8.x.

Compiles with vibe.d 0.8.0