(issue56) Do not delete the certificate immediately When the selection changed the remove cert is triggered by a slection change event in the certificateitem. Deleting it immediately would delete the trigger of the call. Instead we deleteLater so that the widget get's cleaned up in the next mainloop iteration when it is no longer needed.

When linking against a shared nss build the nss installation program
has the following NSS run time dependencies:

 - nssckbi.dll
 - smime3.dll
 - nss3.dll
 - nssdbm3.dll
 - softokn3.dll
 - sqlite3.dll
 - freebl3.dll
 - nssutil3.dll
 - libplc4.dll
 - libplds4.dll
 - libnspr4.dll