the tag fFortifyAdjacentAdjustment doesn't mesh well with how actual graphics for concertina look like and are sorted in .sti-file
that resulted in concertina being shown facing wrong direction when using fortification assignment and placing them next to each other
which was caused by that attempt to align to adjacent tile
setting the tag to 0 instead of 1 solved that issue
Empty sandbags (#1540) are now a 'stack' of bags that can be used to create 100 sandbag structures and it can be merged.
git-svn-id: https://ja2svn.mooo.com/source/ja2_v1.13_data@2269 4f8fa57e-7814-0410-bad4-adc449f26b7c