Merge pull request #31 from nakomis/ignore-java-version

Ignores .java-version (jenv config file)
diff --git a/.gitignore b/.gitignore
index ed439f2..d247468 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,5 @@
 *brooklyn-persisted-state/
 
 ignored
+
+.java-version