Complete Softmute (Vanilla version)

1.2: Bug fixes
- Fixed a "compatibility" check (incorrect case for a plugin name)
- Added compatibility for BlockSyntax (and other potential anti-spam plugins)
- Slight refactor of the event "uncanceller" (some cleanup, readability)

1.1.1: Slight Optimizations
Slightly optimized the commandpreprocess event handler to only create and set variables only when necessary.

1.1.0:
- Added softmute functionality to /ignored whispers
- If recipient has /ignored the sender, the sender gets a "softmute" message.
- If sender has ignored recipient, the sender is told that they need to /unignore the player first before sending a whisper.
- Code refactoring
- Potential compatibility with plugins that block /plugin:command syntax. If this does not appear to be the case, let me know what plugin it is!