Fixed the spelling of "Dhaka" in the timezone_menu() function of the Date helper.
Added a missing quote in an example on the index page
diff --git a/index.php b/index.php
index 970f292..39aeda5 100644
--- a/index.php
+++ b/index.php
@@ -80,7 +80,7 @@
 |
 | EXT		- The file extension.  Typically ".php"
 | FCPATH	- The full server path to THIS file
-| SELF		- The name of THIS file (typically "index.php)
+| SELF		- The name of THIS file (typically "index.php")
 | BASEPATH	- The full server path to the "system" folder
 | APPPATH	- The full server path to the "application" folder
 |