even more tweaks, to fix i18n and message length for differing languages
Restores melee crits
Update options.cpp

Just change letter "polish" to "Polish"
Update change log to current experimental.

Includes the last 12 days of content additions and behaviour changes,
but I had no idea what to do with the categories, so I left those out.
Merge branch 'restore-crits' of https://github.com/Coolthulhu/Cataclysm-DDA into merge3
Merge branch 'master' of https://github.com/karols146/Cataclysm-DDA into merge3
Merge branch 'update-changelog' of https://github.com/narc0tiq/Cataclysm-DDA into merge3
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA into medicinal_revamp