Removed erroneous entry for a deleted file.

- Removed the changes to Historical Moments (previously, this mod ensured that no Historical Moment types could become obsolete)
- Slightly increased all costs (Tech, Civic, Great People)
- Slightly altered thresholds Golden/Dark Ages to make Golden Ages more challenging to get as a compensation for longer eras

Updated for compatibility with the new Tech and Civic Shuffle mode.

-- Reverted Golden Age/Dark Age threshold changes.

- Updated Diplomatic Victory point threshold to 30.

Fixed a mistake causing the first Golden Age to actually be slightly easier to obtain than intended.

- Updated German translation.
- Added Italian, Korean, and Polish translations.
- Reduced "research ahead" penalty from 80% to 40%.
- Slowed down population growth, which will impact more heavily at 20+ pop and above.

- Added German, Portuguese, and Spanish translations.
- Reduced "research ahead" penalty from +100% to +80%
- Slightly reduced minimum number of turns possible for Ancient Era and Information Era