Add Spectator to GameMode enum
Build the javadoc & sources so they get uploaded on the repo.
Update Scoreboard API for 1.8
Add NametagVisibility strings used by client
Use Criteria enum for criterion
Create Criteria in ScoreboardCommand
Update javadocs
Add 'trigger' objective type
Add /trigger command
Switch back to string constants for criterion
Work on 'test' command
Renamed 'Criteria' to 'Criterias
Add 'test' subcommand to tab completion
Allow custom criteria to be used