[network-manager-applet] (8 commits) ...merge: support for secret agent hints

[Lubomir Rintel <lkundrak src gnome org>]

Summary of changes:

  755cc56... libnma: free buffers returned by validate_dialog_ssid
  89331ca... all: pass 'hints' from secret agent to ws_wpa_eap_new
  3214d70... libnma: use setting name from request to fill wifi dialog f
  0173934... wireless-security: prepare text entries according to 'hints
  33260d9... wireless-security: show no settings for method "external" i
  e283465... libnma: for AP mode use nm_utils_ap_mode_security_valid
  329b808... libnma: add nma_wifi_dialog_new_for_secrets use example
  bc618af... merge: support for secret agent hints