Menu markup: Support ids on submenu and section elements
Menu markup: Support ids on submenu and section elements

This was supposed to work, but didn't.
Bug 666595.

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