fixed handling urls with query params in CertsManager
fixed handling urls with query params in CertsManager

When a QUrl has query params, its toString() member function would
include these params in the string representation, which we don't
want.

losingle/seafile-client,losingle/seafile-client,cloudcopy/client,ggkitsas/seafile-client,daodaoliang/seafile-client,haiwen/seafile-client,losingle/seafile-client,lucius-feng/seafile-client,daodaoliang/seafile-client,daodaoliang/seafile-client,cloudcopy/client,lucius-feng/seafile-client,wgaalves/seafile-client,losingle/seafile-client,ggkitsas/seafile-client,ggkitsas/seafile-client,wgaalves/seafile-client,haiwen/seafile-client,lucius-feng/seafile-client,lucius-feng/seafile-client,cloudcopy/client,ggkitsas/seafile-client,haiwen/seafile-client,cloudcopy/client,haiwen/seafile-client,wgaalves/seafile-client,daodaoliang/seafile-client,wgaalves/seafile-client