Merge pull request #1091 from gerardorochin/logstash_2_0_0-beta1

Add logstash 2.0.0-beta1

library/logstash

@@ -10,3 +10,8 @@
 1.5: git://github.com/docker-library/logstash@722165120c05043a69c0482d7fecaff404428e51 1.5
 1: git://github.com/docker-library/logstash@722165120c05043a69c0482d7fecaff404428e51 1.5
 latest: git://github.com/docker-library/logstash@722165120c05043a69c0482d7fecaff404428e51 1.5
+
+2.0.0-beta1-1: git://github.com/docker-library/logstash@62715f69df799b5feff3e42370bbc6d70f92c7d7 2.0
+2.0.0-beta1: git://github.com/docker-library/logstash@62715f69df799b5feff3e42370bbc6d70f92c7d7 2.0
+2.0.0: git://github.com/docker-library/logstash@62715f69df799b5feff3e42370bbc6d70f92c7d7 2.0
+2.0: git://github.com/docker-library/logstash@62715f69df799b5feff3e42370bbc6d70f92c7d7 2.0