* Automatically run --gettime the first time ikiwiki is run on
a given srcdir.
* Add rcs_getmtime to plugin API; currently only implemented
- for git.
+ for git and svn.
* Optimise --gettime for git, so it's appropriatly screamingly
fast. (This could be done for other backends too.)
* However, --gettime for git no longer follows renames.