Add build output to the .gitignore

This is more of a problem if the build fails for whatever reason.

Signed-off-by: Travis Ralston <travpc@gmail.com>

.gitignore

@@ -6,6 +6,7 @@
 /scripts/continuserv/continuserv
 /scripts/speculator/speculator
 /scripts/swagger
+/scripts/tmp
 /templating/out
 *.pyc
 *.swp