Add a changePassword method in SOAP API
Example:
<pre>
/**
* Allow project admin to change the password of user from his project
*
* Only project admin can execute this method
*
* @param String $adminSessionHash Session identifier
* @param String $username User Name whose password to be changes
* @param String $newPassword The new password
*
* @return Boolean true if password has been updated, false otherwise
*/
function changePassword(String $adminSessionHash, String $username, String $newPassword);
</pre>