Modify redirect.php to use .env variables

.env.example

@@ -1,3 +1,9 @@
-REDMINE_URL="https://hq.example.com"
-REDMINE_API_KEY="abc123"
-DEBUG_MODE=FALSE
+REDMINE_URL='https://redmine.example.com'
+# Used to get mappings.
+REDMINE_API_KEY=''
+# Used for sending email to Redmine.  Not sure if these can be consolidated atm.
+KEY=''
+# Leave these two blank for false.
+CATCHALL_PROJECT_NAME='catch'
+DEBUG_MODE=
+DRY_RUN=

redirect.php

@@ -1,10 +1,17 @@
 #!/usr/bin/php
 <?php
+
+require_once 'vendor/autoload.php';
+
+// Load the .env file
+$dotenv = new Dotenv\Dotenv(__DIR__);
+$dotenv->load();
+
 // Debug Mode will show more information.
-$debugMode = TRUE;
+$debugMode = getenv('DEBUG_MODE');
 
 // Dry Run Mode will suppress sending an e-mail to Redmine.  Only really useful with debug mode on.
-$dryRun = FALSE;
+$dryRun = getenv('DRY_RUN');
 
 if($debugMode) {
   error_reporting(E_ALL);
@@ -13,11 +20,11 @@ if($debugMode) {
 // initialize.
 $deliveredTo = $from = $project = $email = $subject = NULL;
 $params = array(
-  'url' => 'https://hq.megaphonetech.com',
-  'key' => '4kaq0ZLsWDndWEKN8O3D',
+  'url' => getenv('REDMINE_URL'),
+  'key' => getenv('KEY'),
   'unknown-user' => 'create',
   'allow-override' => 'all',
-  'project' => 'catch',
+  'project' => getenv('CATCHALL_PROJECT_NAME'),
   'tracker' => 'general',
 );