Release 0.9.10

0.9.10

• Fixed another Windows multi-threading issue.

• Reverted new behaviour to consider all directories containing .git
  as a project root. It is useful, but until it can be configured
  (#156) it can
  be really disruptive.

• MH Metric can now produce reports in JSON using the new --json
  option.

• Rename packages (miss_hit_agpl is now miss_hit, and miss_hit
  is now miss_hit_core). It's likely this is not the last renaming,
  sorry. I can only promise that it will be stable after 1.0 is
  released.