closes #382 - install script can be run via command line

src/install.js

@@ -54,12 +54,29 @@ var async = require('async'),
 		setup: function (callback) {
 			async.series([
 				function(next) {
-					// prompt prepends "prompt: " to questions, let's clear that.
+					// Check if the `--setup` flag contained values we can work with
-					prompt.start();
+					var	setupVal;
-					prompt.message = '';
+					try {
-					prompt.delimiter = '';
+						setupVal = JSON.parse(nconf.get('setup'));
+					} catch (e) {
+						setupVal = undefined;
+					}
 
-					prompt.get(install.questions, function (err, config) {
+					if (setupVal && setupVal instanceof Object) {
+						if (setupVal['admin:username'] && setupVal['admin:password'] && setupVal['admin:email']) {
+							install.values = setupVal;
+							next();
+						} else {
+							winston.error('Required values are missing for automated setup:');
+							if (!setupVal['admin:username']) winston.error('  admin:username');
+							if (!setupVal['admin:password']) winston.error('  admin:password');
+							if (!setupVal['admin:email']) winston.error('  admin:email');
+							process.exit();
+						}
+					} else next();
+				},
+				function (next) {
+					var	success = function(err, config) {
 						if (!config) {
 							return next(new Error('aborted'));
 						}
@@ -94,7 +111,24 @@ var async = require('async'),
 						server_conf.relative_path = relative_path;
 
 						install.save(server_conf, client_conf, next);
-					});
+					};
+
+					// prompt prepends "prompt: " to questions, let's clear that.
+					prompt.start();
+					prompt.message = '';
+					prompt.delimiter = '';
+
+					if (!install.values) prompt.get(install.questions, success);
+					else {
+						// Use provided values, fall back to defaults
+						var	config = {},
+							question, x, numQ;
+						for(x=0,numQ=install.questions.length;x<numQ;x++) {
+							question = install.questions[x];
+							config[question.name] = install.values[question.name] || question['default'] || '';
+						}
+						success(null, config);
+					}
 				},
 				function (next) {
 					// Applying default database configs
@@ -238,8 +272,7 @@ var async = require('async'),
 					hidden: true,
 					type: 'string'
 				}],
-				getAdminInfo = function (callback) {
+				success = function(err, results) {
-					prompt.get(questions, function (err, results) {
 					if (!results) {
 						return callback(new Error('aborted'));
 					}
@@ -261,10 +294,18 @@ var async = require('async'),
 							}
 						});
 					});
-					});
 				};
 
-			getAdminInfo(callback);
+			if (!install.values) prompt.get(questions, success);
+			else {
+				var results = {
+						username: install.values['admin:username'],
+						email: install.values['admin:email'],
+						password: install.values['admin:password']
+					};
+
+				success(null, results);
+			}
 		},
 		save: function (server_conf, client_conf, callback) {
 			// Server Config