Update _alpm_versioncmp

This code hasn't been looked at in some time. I grabbed a more recent
version of the RPM source (4.4.2.3) and attempted to sync up any changes
they have made, as well as make the libalpm additional code much cleaner and
limited to only a few added lines of code.

The size of this patch might make you think we added code, but bloat-o-meter
actually tells us otherwise:
<function>                                 <old>   <new>  <diff>
_alpm_versioncmp                            1485    1021    -464

Signed-off-by: Dan McGee <dan@archlinux.org>

0 files changed, 0 insertions, 0 deletions