Updating docker ignore so that previous builds and artificats don't m…

…ake it into your Docker container. This really messed me up b/c inside the container I did not have a pristine state with not left over compiled assets.

.dockerignore

@@ -1,4 +1,23 @@
 .git
-tmp
-log
-vendor/bundle
+client_apps/canvas_quizzes/node_modules/
+client_apps/canvas_quizzes/dist/
+client_apps/canvas_quizzes/tmp/
+config/*.example
+coverage/
+coverage-js/
+gems/*/node_modules/
+gems/plugins/*/node_modules/
+gems/plugins/*/.git
+log/
+node_modules/
+packages/*/node_modules/
+packages/canvas-planner/lib
+public/dist/
+public/doc/
+public/javascripts/client_apps/
+public/javascripts/translations/
+!public/javascripts/translations/_core_en.js
+tmp/
+vendor/bundle/
+vendor/*/.git
+mkmf.log