Reset forgot admin password in Day/Adobe CQ5.4

The below text is directly taken from dev.day.com web site:

“System administration ‘admin’ account is the member of the administrator group, with full access rights.
This account is used for the connection between CQ WCM and CRX.
As such its configuration cannot be edited – with the exception of the password.”

They forgot or lost admin password can be restored to default in /crx-quickstart/server/etc/server.xml file. Replacing below lines will help to change password back to admin.
<admin>
<crypt>adpexzg3FUZAk</crypt>
</admin>

* adpexzg3FUZAk is equivalent crypt text of admin password.

Note: This is applicable to only CQ 5.4 and older versions; as the directory structure seems to be changed in CQ 5.5.