Revert "Fix reported [-Werror=format] issue."

This reverts commit 0bfee185a38c1a354c14b33a064d13d81a03962f.
Revert "Add last part of net patch (needs updated server code)."

This reverts commit 329572779ae2e383b6bd668078ee4ecffe173dc4.
Use std::multiset::iterator instead of std::set::iterator with std::multiset.

Apparently, the iterators were compatible, in some library implementations.
Make sure ZNULL* stats are always first in the list, since this is apparently hardcoded.
Fix calculation of VTOL turn speed.
Also update campaign propulsions
statseditor: Show propulsions
Merge branch 'bugfixes'
Update translations.
Default to xz compression for make dist.

Also set xz options to the xz default -6, since the automake default -e
is noticeably slower without noticeably better compression. Fixes #3492.
Merge branch 'bugfixes'

* bugfixes:
  Default to xz compression for make dist.
  Update translations.
French translation update by Amiral JCDG.

Closes #3671.
Force code signing to happen last.
Merge branch 'bugfixes'
Update disabled uplink and lassat icons.
Allow researching topics which labs being upgraded are already researching.

If researching Kittens Mk2 in lab A, then Kittens Mk2 is unavailable for research in other labs. If upgrading lab
A, then Kittens Mk2 now becomes available for research in other labs, for the duration of lab A's upgrade. If
choosing Kittens Mk2 in lab B, then the research of Kittens Mk2 is cancelled in lab A, and the user must manually
select a new research topic for the lab, such as Puppies Mk3. Otherwise, lab A continues researching Kittens Mk2
once lab A is done upgrading, as usual. The same applies if lab A is being demolished, except that lab A cannot
continue researching after it has been demolished.

This is especially useful in the case of a lab upgrade being delayed due to loss of trucks.
Merge branch 'bugfixes'
Fix a bug where the players list vanishes after we close our nick chooser.
Remove unneeded comment.
Change data type of currentBuildPts from SWORD to int32_t, by Kreuvf.

Based on patch by Kreuvf.

Avoids currentBuildPts overflow effect: very long progress bar.

Fixes ticket:3685.