Add first release of AWS plugin

Tools for working with Amazon Web Services:

* Templates for saving a TiddlyWiki as a single JavaScript file in a
ZIP file that can be executed as an AWS Lambda function. In this form,
TiddlyWiki is a self contained single file containing both code and
data, just like the standalone HTML file configuration
* Commands that can be used to interact with AWS services, under both
the Node.js and Lambda configurations of TiddlyWiki

plugins/tiddlywiki/aws/modules/init.js

@@ -0,0 +1,37 @@
+/*\
+title: $:/plugins/tiddlywiki/aws/init.js
+type: application/javascript
+module-type: startup
+
+AWS initialisation
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+// Export name and synchronous status
+exports.name = "aws-init";
+exports.before = ["startup"];
+exports.synchronous = true;
+
+exports.startup = function() {
+	var logger = new $tw.utils.Logger("aws");
+		if($tw.node) {
+		try {
+			require("aws-sdk");
+		} catch(e) {
+			logger.alert("The plugin 'tiddlywiki/aws' requires the aws-sdk to be installed. Run 'npm install aws-sdk' in the root of the TiddlyWiki repository");
+		}
+	}
+	if(!$tw.modules.titles["$:/plugins/tiddlywiki/async/async.js"]) {
+		logger.alert("The plugin 'tiddlywiki/aws' requires the 'tiddlywiki/async' plugin to be installed");
+	}
+	if(!$tw.modules.titles["$:/plugins/tiddlywiki/jszip/jszip.js"]) {
+		logger.alert("The plugin 'tiddlywiki/aws' requires the 'tiddlywiki/jszip' plugin to be installed");
+	}
+};
+
+})();