Bump to 1.9.4
Drop simplenbt reference - spout repo isn't good anymore....
Fix display name vs ID for player on join/quit message API
Add sign change API to help with marker sign support on MCPC+
Improve map refresh when configuration changes (preserve view)
Handle broken RPs with absolute texture paths without leading '/' (Soartex)
Handle square brackets in world names: normalize to underscore to avoid
HTTP issues