Add 'k' parsing on kill page
- This allows the user to insert '60k' in the bullets field. Value wil
  automaticly be changed to 60k.
- Works for any value that has 'k' behind it.
- Fixes #66
Merge pull request #67 from Brainscrewer/ob_feature_killpage

Add 'k' parsing on kill page
Update devDependencies
bump game version to 4.7.1 and OB version to 2.0.56