fix background/forground of Sprite3D on android platform
using lambda function instead of member function
remove foreground event listener when GLProgramState is deleted
add background/foreground listener for Effectsprite3d/Effect3d test case
add background/foreground listener for EffectSprite/Effect framework test case
closed #5392: add priority check for schedulePerFrame() and add a ScheduleUpdatePriority test.
Merge pull request #6919 from dabingnn/v3.1hotfix

V3.1hotfix
closed #5392: add comment for unscheduleUpdate() at schedulePerFrame()
[Jenkins][ci skip] Add rebuild jobs to watchdog.py
[ci skip][jenkins]move http proxy address to jenkins configuration
Merge pull request #6934 from lmskater/add-rebuild-job-to-watchdog

[Jenkins][ci skip] Add rebuild jobs to watchdog.py
Merge pull request #6935 from heliclei/config-proxies

[ci skip][jenkins]move http proxy address to jenkins configuration
Merge pull request #6936 from Dhilan007/v3

fix faults of load project on Win 32.
CCUserDefault.cpp: Should not compile on Mac platform (should be using CCUserDefault.mm implementation).
Merge branch 'v3.1hotfix' into v3

Conflicts:
	tests/cpp-tests/Classes/Sprite3DTest/Sprite3DTest.cpp
	tests/cpp-tests/Classes/Sprite3DTest/Sprite3DTest.h
only use _backToForeGroundListner when on Android
fix typo
[Jenkins][ci skip] Fix proxy address to jenkins config
Merge pull request #6940 from lmskater/fix-proxy

[Jenkins][ci skip] Fix proxy address to jenkins config
Merge pull request #6937 from wefiends/Mac-UserDefault

CCUserDefault.cpp: Should not compile on Mac platform