textproc/elasticsearch2: v2,1 + JAVA_HOME launch fix

[Loïc BLOT]

Hello
Elasticsearch 2.1 is out. Also we have a problem with $PATH which
doesn't permit original elasticsearch launcher to find our JAVA_HOME
because /usr/local/bin is not in path. This upgrade patch also fix the
problem on this port.

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204821

Can someone review & update ?
-- 
Best regards,
Loïc BLOT, 
UNIX systems, security and network engineer
http://www.unix-experience.fr