Clean up unused files and functions
diff --git a/.Rproj.user/441ADA46/sources/s-D8AE56D0/3F768200 b/.Rproj.user/441ADA46/sources/s-D8AE56D0/3F768200
new file mode 100644
index 0000000..4b0b9d8
--- /dev/null
+++ b/.Rproj.user/441ADA46/sources/s-D8AE56D0/3F768200
@@ -0,0 +1,20 @@
+{
+ "collab_server" : "",
+ "contents" : "",
+ "created" : 1544070205595.000,
+ "dirty" : false,
+ "encoding" : "UTF-8",
+ "folds" : "",
+ "hash" : "3799213893",
+ "id" : "3F768200",
+ "lastKnownWriteTime" : 1544050143,
+ "last_content_update" : 1544050143,
+ "path" : "~/Documents/GitHub/posterdown/.travis.yml",
+ "project_path" : ".travis.yml",
+ "properties" : {
+ },
+ "relative_order" : 3,
+ "source_on_save" : false,
+ "source_window" : "",
+ "type" : "yaml"
+}
\ No newline at end of file