Added .dot and .dotx mimes. Fixes #1803

Signed-off-by: Alex Bilbie <alex@alexbilbie.com>
diff --git a/application/config/mimes.php b/application/config/mimes.php
index af1c95f..90ffe61 100644
--- a/application/config/mimes.php
+++ b/application/config/mimes.php
@@ -124,6 +124,8 @@
 	'movie'	=>	'video/x-sgi-movie',
 	'doc'	=>	array('application/msword', 'application/vnd.ms-office'),
 	'docx'	=>	array('application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'application/zip', 'application/msword'),
+	'dot'	=>	array('application/msword', 'application/vnd.ms-office'),
+	'dotx'	=>	array('application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'application/zip', 'application/msword'),
 	'xlsx'	=>	array('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'application/zip', 'application/vnd.ms-excel', 'application/msword'),
 	'word'	=>	array('application/msword', 'application/octet-stream'),
 	'xl'	=>	'application/excel',