Install jubatus-mpio and jubatus-msgpack-rpc
Bug fix: Move to cpp directory
Use wget instead of git clone
Remove check for git command
Remove libevent
Write about D option
Install 0.4.0
Upgrade ux
Merge branch 'feature/for-0.4.0' of git://github.com/unnonouno/jubatus-installer

Conflicts:
	install.sh
$JUBATUS_HOME check does not work correctly.