Replace spaces with tabs for Lua, and more (#399)

Convert code indents to tabs to be consistent with the rest of the
JavaScript code.  This commits covers all of the lua code, some of the
hand written JSON code and the lone HTML and CSS files that were not
using tabs.

docs/contributing.md

@@ -224,9 +224,9 @@ JavaScript template literals may also be used where appropriate.
 
 ### Indenting
 
-JavaScript code should be indented with tabs.
+JavaScript and Lua code should be indented with tabs.
 
-Lua code should be indented with 4 spaces.
+Other files types should prefer tabs for indents where reasonable with the exception of Markdown.
 
 
 ### Line Length

docs/jsdoc.json

@@ -1,23 +1,23 @@
 {
-    "plugins": [
-        "plugins/markdown"
-    ],
-    "tags": {
-        "allowUnknownTags": false
-    },
-    "opts": {
-        "destination": "docs/api",
-        "recurse": true
-    },
-    "source": {
-        "include": [
-            "packages/master/src/",
-            "packages/master/master.js",
-            "packages/slave/slave.js",
-            "packages/ctl/ctl.js",
-            "packages/lib/",
-            "plugins/"
-        ],
-        "excludePattern": "node_modules"
-    }
+	"plugins": [
+		"plugins/markdown"
+	],
+	"tags": {
+		"allowUnknownTags": false
+	},
+	"opts": {
+		"destination": "docs/api",
+		"recurse": true
+	},
+	"source": {
+		"include": [
+			"packages/master/src/",
+			"packages/master/master.js",
+			"packages/slave/slave.js",
+			"packages/ctl/ctl.js",
+			"packages/lib/",
+			"plugins/"
+		],
+		"excludePattern": "node_modules"
+	}
 }