made syslog-socket parameter configurable via enviroment variable, du…
made syslog-socket parameter configurable via enviroment variable, du…

* made syslog-socket parameter configurable via enviroment variable, due to #135

* moved SYSLOG_SOCKET env from Dockerfile to run script, due to #135

knesenko/marathon-lb,vixns/marathon-lb,mesosphere/marathon-lb,vixns/marathon-lb,JamesAwesome/marathon-lb,matt-deboer/marathon-lb,matt-deboer/marathon-lb,matt-deboer/marathon-lb,knesenko/marathon-lb,mesosphere/marathon-lb,GrovoLearning/marathon-lb,mesosphere/marathon-lb,JamesAwesome/marathon-lb,knesenko/marathon-lb,vixns/marathon-lb,JamesAwesome/marathon-lb,GrovoLearning/marathon-lb,GrovoLearning/marathon-lb