fix new battle bases
add armor and explosive to mcdpatch

but seriously, if you want to use it for any more than this, alter the MCDs
factor difficulty back into efficacy

enough to influence it, but not enough to outweigh survival instincts
fix breifing window/game over screens and menu transitions
remove unnecessary function
recenter options menu when confirming new resolution
fix lift voxels
hide invalid options in new battle (when opening)
allow ammo to define bullet sprite

will override weapon's bullet sprite.
fix door opening behaviours

both in pathing and in door opening
fix AI reserve

< != <=
Update Changelog.

5000 commits to OpenXcom, and what a journey it has been.
so many bugs squashed, so many features added, so much vanilla flavour.
thanks go out to all our contributors, supporters, translators, followers,
fans, friends, testers and players.
without all of your passion and enthusiasm, the project might never have
made it this far.
capital letter consistency.
remove 8bit
re-fix 541

be less obtuse, and handle it better.
fix audio mix
Changed Sell Manufacture from an option to a toggle.
Fixed UI bugs.
fix kneel reserve/mc/probably tank issue