Convert compile demo into a unit test. (#1360)

* Intentionally break Travis.

* Alphabetize tests, remove orphaned test, and add fail to test that's running.

* Unbreak test, disable OS X, move scripts, list compiler directory.

* Test Java, break test.

* Unbreak test, call compile script.

* Compile main_compressed.js

* Run test command using bash.

* Fix path.

* Exclude node modules.

* Be more specific about JS files to compile.

* Test failure.

* Restore OSX, undo Blockly failure, remove compilation demo, add compilation test.

* Delete manual test files.

* Ignore downloaded/generated files.

* Whitespace cleanup.

tests/scripts/selenium_connect.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+#check if selenium server is up running
+pid=`lsof -ti tcp:4444`
+if [ $? -eq 0 ]
+then
+  kill -9 $pid 
+fi
+java -jar -Dwebdriver.gecko.driver=../geckodriver -Dwebdriver.chrome.driver="chromedriver/chromedriver" ../webdriverio-test/selenium-server-standalone-3.0.1.jar  &
+