Better debugging, and several bug fixes

This commit brings a greater experience for developers working on ZQDGR,
and also fixes a number of bugs. The following bugs have been fixed:
- Scripts that died in watch mode did not restart once changes were made
- Created and deleted files did not cause a reload
- script.Stop is now used in every place where we kill the process, this
  ensures that the process is *eventually* actually killed

zqdgr.config.json

@@ -1,6 +1,6 @@
 {
     "name": "zqdgr",
-    "version": "0.0.4a",
+    "version": "0.0.5",
     "description": "zqdgr is a quick and dirty Golang runner",
     "author": "juls0730",
     "license": "BSL-1.0",