client support for other player disconnections
server sends disconnect notifications
Merge pull request #34 from kaezarrex/master

Spacebar moves up while in fly mode.
server fix
faster loading, ability to teleport to others
use a macro for iterating over map entities
destroy the plant above a broken block
show player rotation
players have faces
Merge branch 'above-plants' of https://github.com/dymk/Craft
code formatting
Added .travis.yml