Exchange 2010/2013 coexistence IIS settings

Some IIS settings must be installed to correct work Exchange 2013.

MBX Servers 2013 (fix display Organization Units in the ECP):

"C:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\ecp\web.config"

if no values, setting values <add key="GetListDefaultResultSize" value="2000" />

CAS Servers 2013 (fix access mailboxes on Exchange 2010 from 2013):

"C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\autodiscover\web.config"

"C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\ews\web.config"

if no values, setting values <serverRuntime uploadReadAheadSize="1048576" />