Lots of test improvements

- More deployment tests
- More job error code asserts

tests/DMAPI/BuildFail/Test.dm

@@ -0,0 +1,2 @@
+/world/New()
+	this isn't valid DM

tests/DMAPI/BuildFail/build_fail.dme

@@ -0,0 +1,15 @@
+// Hand crafted DME, will not work if saved with DreamMaker
+
+// BEGIN_INTERNALS
+// END_INTERNALS
+
+// BEGIN_FILE_DIR
+#define FILE_DIR .
+// END_FILE_DIR
+
+// BEGIN_PREFERENCES
+// END_PREFERENCES
+
+// BEGIN_INCLUDE
+#include "Test.dm"
+// END_INCLUDE