gitian: upgrade miniupnpc input to 1.9

Bumps deps-linux, deps-win dependency versions as well.

qt-win does not need to be bumped, as although it depends on deps-win,
Qt doesn't use miniupnp. I verified this by rebuilding the dependency
and checking the the output is the same. Not having to rebuild Qt is a
good thing as it is huge.
doc: update expected intermediate dependency hashes

Also move them to release-process.md from gitian-building.md for more
visibility.
Merge pull request #4033

219b512 doc: update expected intermediate dependency hashes (Wladimir J. van der Laan)
25d4911 gitian: upgrade miniupnpc input to 1.9 (Wladimir J. van der Laan)
tried to merge in sipa's watch-only patch

Conflicts:
	src/rpcserver.cpp
qt: Hide unspendable outputs in coin control
Watchonly balances are shown separately in gui.
Watchonly transactions are marked in transaction history
added watchonly parameter to getbalance and fixed errors in balance calculation.
added watchonly parameter to listaccounts
added watchonly parameter to listtransactions and listsinceblock
Showing 'involvesWatchonly' property for transactions returned by 'listtransactions' and 'listsinceblock'.
It is only appended when the transaction involves a watchonly address.