Cleaning up configuration comments.

application/config/db.php

@@ -9,8 +9,8 @@ return array(
 	|
 	| The name of your default database connection.
 	|
-	| This connection will be used by default for all database operations
-	| unless a different connection is specified when performing the operation.
+	| This connection will be the default for all database operations unless a
+	| different connection is specified when performing the operation.
 	|
 	*/
 
@@ -21,13 +21,26 @@ return array(
 	| Database Connections
 	|--------------------------------------------------------------------------
 	|
-	| Here you can define all of the databases used by your application.
+	| All of the database connections used by your application.
 	|
 	| Supported Drivers: 'mysql', 'pgsql', 'sqlite'.
 	|
 	| Note: When using the SQLite driver, the path and "sqlite" extention will
 	|       be added automatically. You only need to specify the database name.
 	|
+	| Using a driver that isn't supported? You can still establish a PDO
+	| connection. Simply specify a driver and DSN option:
+	|
+	|		'odbc' => array(
+	|			'driver'   => 'odbc',
+	|			'dsn'      => 'your-dsn',
+	|			'username' => 'username',
+	|			'password' => 'password',
+	|		)
+	|
+	| Note: When using an unsupported driver, Eloquent and the fluent query
+	|       builder may not work as expected.
+	|
 	*/
 
 	'connections' => array(