Added sendmail path config option.

app/config/mail.php

@@ -95,4 +95,17 @@ return array(
 
 	'password' => null,
 
+	/*
+	|--------------------------------------------------------------------------
+	| Sendmail System Path
+	|--------------------------------------------------------------------------
+	|
+	| When using the "sendmail" driver to send e-mails, we will need to know
+	| the path to where Sendmail lives on this server. A default path has
+	| been provided here, which will work well on most of your systems.
+	|
+	*/
+
+	'sendmail' => '/usr/sbin/sendmail',
+
 );