r22982, Add code to generate ChangeLog from git

[Geert Janssens]

On Monday 20 May 2013 21:10:55 Christian Stimming wrote:
> Hi Geert,
> 
> with r22982 the windows nightly build broke. It stops at configure's line
> 
> > checking for ../repos/src/swig-runtime.h... no
> 
> and gives the error message
> 
> > It looks like you are NOT building from Subversion, svk, git or bzr
> > but I cannot find swig-runtime.h.  Check your PATH and make sure
> > we can find gnc-scm-info in your PATH!
> 
> Can you have a look into that? Thanks!
> 
> Regards,
> 
> Christian

Hi Christian,

Thanks for the heads up. It was my intention to check up on the windows build after my 
changes, but due to local circumstances I eventually forgot about it.

I pushed a fix and the windows build is currently running (and already got past the 
error above).

Geert