Lineendings: Converted all text/code files to unix lineendings

- With these line endings, the file checksums will be calculated
  now
- When using git on windows, make sure to set core.autocrlf to true
  (Command: git config --global core.autocrlf true)
Merged CREST Link and Kill Mail posting

- "Post Mail" page renamed to "Post Kill"
- This page shows entries for posting CREST links and/or
  Kill mail depending on the admin configuration
Updated CCP DB to Rubicon 1.3 for EDK 4.2.0.0