Generate straighter lines with map::route by checking points closer to the target first.
Boat/auto-fuel proofreading

Cleaned up some unclear language.  Sorry I didn't comment on these
during the process.
Zombie pigs

As summoned by Labtop_215:
http://smf.cataclysmdda.com/index.php?topic=19.msg158380#msg158380
another typo
Fix JSON error

Use the right id, KA101!
OK, now bite down

Bites are pretty common.
Merge remote-tracking branches 'dda/pr/8205' and 'dda/pr/8207' into dda-master

* dda/pr/8205:
  another typo
  Boat/auto-fuel proofreading

* dda/pr/8207:
  OK, now bite down
  Fix JSON error
  Zombie pigs, for great justice!
Fixes more singlespaces.
CBM units too.
Oops.
Merge pull request #8211 from Rivet-the-Zombie/more-spacing

Fixes singlespacing in bionics.
Revert "Translation of motd and credits"

This reverts commit 38f9fc8fd691d66018eec904eefc033b38601594.
Load a separate motd/credits file for each locale

File name is created from a base path + locale + extension.
This system is also used to lo load the localized names json data.

Move credits and motd file into separate folders in data/ and
rename them to match the system that data/lang/ uses.
Remove old_t_* enumerations.

Remove map::oldter, reverse_legacy_ter_id. use map::ter and current t_* values instead.
Rewrite the switches into if-else-if structures.
Apply astyle to map::hit_with_acid

Fix bug in iuse::hacksaw: don't check the terrain type != 0 (=t_null), it's always non-null.
Remove old_f_* enumerations

Remove map::oldfurn, nearly nowhere used.