GSettings: keep resets on loss of writability
GSettings: keep resets on loss of writability

Don't drop resets from a GDelayedSettingsBackend when the writability
changes.  Resets will always succeed, even against non-writable keys and
some people (gnome-screensaver) are using them in a way that they would
want them not to be forgotten.

pstglia/platform-external-bluetooth-glib,iConsole/Console-OS_external_bluetooth_glib,pstglia/external-bluetooth-glib,ieei/glib,pstglia/external-bluetooth-glib,tamaskenez/glib,pstglia/platform-external-bluetooth-glib,tamaskenez/glib,pstglia/platform-external-bluetooth-glib,iConsole/Console-OS_external_bluetooth_glib,mzabaluev/glib,johne53/MB3Glib,krichter722/glib,krichter722/glib,krichter722/glib,mzabaluev/glib,01org/android-bluez-glib,01org/android-bluez-glib,iConsole/Console-OS_external_bluetooth_glib,endlessm/glib,ieei/glib,pstglia/external-bluetooth-glib,cosimoc/glib,darren-clark/android_platform_external_bluetooth_glib,djdeath/glib,gale320/glib,01org/android-bluez-glib,darren-clark/android_platform_external_bluetooth_glib,darren-clark/android_platform_external_bluetooth_glib,cosimoc/glib,tchakabam/glib,antono/glib,cention-sany/glib,krichter722/glib,cosimoc/glib,bluez-android/glib,cention-sany/glib,justinkb/aosp-bluez.glib,antono/glib,iConsole/Console-OS_external_bluetooth_glib,ieei/glib,lukasz-skalski/glib,tamaskenez/glib,endlessm/glib,Distrotech/glib,djdeath/glib,endlessm/glib,zsx/glib,01org/android-bluez-glib,justinkb/aosp-bluez.glib,endlessm/glib,johne53/MB3Glib,endlessm/glib,krichter722/glib,lukasz-skalski/glib,bluez-android/glib,bluez-android/glib,Distrotech/glib,cosimoc/glib,MathieuDuponchelle/glib,tchakabam/glib,lukasz-skalski/glib,darren-clark/android_platform_external_bluetooth_glib,djdeath/glib,tchakabam/glib,mzabaluev/glib,antono/glib,MathieuDuponchelle/glib,tchakabam/glib,gale320/glib,zsx/glib,cention-sany/glib,cention-sany/glib,antono/glib,lukasz-skalski/glib,ieei/glib,ieei/glib,djdeath/glib,mzabaluev/glib,pstglia/external-bluetooth-glib,pstglia/platform-external-bluetooth-glib,zsx/glib,gale320/glib,pstglia/external-bluetooth-glib,01org/android-bluez-glib,johne53/MB3Glib,Distrotech/glib,iConsole/Console-OS_external_bluetooth_glib,cention-sany/glib,gale320/glib,Distrotech/glib,justinkb/aosp-bluez.glib,darren-clark/android_platform_external_bluetooth_glib,justinkb/aosp-bluez.glib,bluez-android/glib,MathieuDuponchelle/glib,johne53/MB3Glib,pstglia/platform-external-bluetooth-glib,gale320/glib,justinkb/aosp-bluez.glib,tamaskenez/glib,zsx/glib,johne53/MB3Glib,MathieuDuponchelle/glib,Distrotech/glib,bluez-android/glib,lukasz-skalski/glib,johne53/MB3Glib,cosimoc/glib,djdeath/glib,tchakabam/glib,MathieuDuponchelle/glib,mzabaluev/glib,tamaskenez/glib