Removal of Mouse enum

Signed-off-by: Walker Crouse <walkercrouse@hotmail.com>
Clarified javadocks for getPoint
Merge pull request #561 from croxis/master

Clarified location of getPoint on EntityInteractEvent
Initial plugin update / install API

Signed-off-by: Walker Crouse <walkercrouse@hotmail.com>
[Breaking] Remove unecassary plugin abstraction

Signed-off-by: Walker Crouse <walkercrouse@hotmail.com>
Merge remote-tracking branch 'origin/master' into client-connection