Add python to makedeps, add separate dedup stage
Recently upstream has started running check_whence.py prior to the installation process, to ensure the WHENCE metadata is in the correct format.
In addition, the de-duplication stage is no longer forced onto everyone. So anyone interested, can run the separate target.
Both of those are done by yours truly, so direct any rotten tomatoes^W^Wpraise towards me ;-)
Signed-off-by: Emil Velikov emil.l.velikov@gmail.com
Note: the latter (splitting deduplication from install) hasn't happened yet. I'm expecting it to be in for the upcoming release.