re-initialise client on configuration file change

* client Changes …
  * remove setEmbeded()
  * set reset as public service
  * set init as private service
  * re-initialize OpenM_SSOClientPoolSessionManager onload from file if file has changed

 * adds
  * add getOpenM_ID_MyAccount_URL() to recover URL to My OpenM-ID account

 * libraries Changes
  * upgrade openid version to commit of 21/02/2014