Build as docker container

Change-Id: Ied30167fbaf02fb7744e6295168c8c450687a4c6
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..305f4b5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,9 @@
+.Rproj.user
+.Rhistory
+.RData
+.Ruserdata
+cache/
+docs
+*.log
+*_files/
+*.bak