Ignore intellij files in git

Change-Id: I6e2464e3cba2ccc959d9a70318fe5a457c1ee8f5

.gitignore

diff --git a/.gitignore b/.gitignore
index 64f8b81..f4aac45 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,8 @@
 /src/test/docker/gitvolume
 /src/test/docker/pgdata
 /src/test/docker/shareddir
+
+# IntelliJ files
+.idea
+*.iml
+