renamed fiels are not properly tracked

[ggael]

In eigen's hg repo we have a few files that have been renamed, for instance:

HyperPlane.h -> Hyperplane.h

unfortunately after importing this repo with git-remote-hg, we got the initial filename of these files, thus making the git clone unusable. I don't known it the problem occurs only with lower/upper case changes or with more general renaming too.

[mnauw]

Albeit possibly late to mention, but I tested this in this fork and the renames come out ok there (at least the example mentioned); see also generally #69.

[felipec]

Can you please check with the latest release? (v0.4).