ignore E_STRICT error for Net_UserAgent_Mobile::factory() (fixes #3418, BP from #3406)
(cherry picked from commit 5749159540e18f2af0e3bc5373f72a3ddeefe5c8)
fix method declaration error in action classes (fixes #3420, BP from #3405)
(cherry picked from commit 0e5c3ff1759e6a35048b3eb4367dd38057c53a44)
add ability to categorize test data for functional tests (fixes #3422, BP
from #3404)
(cherry picked from commit a3beff99b303105c04cbf40dd3918ed3f1828504)
fix `Array to string conversion' error in opI18N (fixes #3459, BP from #3424)
(cherry picked from commit 015897d36b9272059c74a27e74c6d2639e9c3243)
remove useless include in designActionsTest.php (fixes #3460, BP from #3425)
(cherry picked from commit 74943a28fb7cb3da51dd3bae47283708a266540f)
remove useless tests in pc_backend (fixes #3461, BP from #3426)
(cherry picked from commit 66829df2516fd50053d2c94a7425d0fc7041b952)
change the tester class in snsActionsTest.php (fixes #3462, BP from #3427)
(cherry picked from commit 82d117e45945bb1b86350e135a839ba803ac0fb7)
make IsRequired and IsTrim optional in opFormItemGenerator (fixes #3463,
BP from #3428)
(cherry picked from commit 0962d48b8fbfa2da9be0d65764a569bf9ccfd1e7)
fix fallback error when activity_templates.yml doesn't exist (fixes #3465,
BP from #2773)
(cherry picked from commit 6864bf36d7df3b7acb25d6fc9a5c45de519140a9)
skip the test for gzip type column if zlib extensions is missing (fixes
(cherry picked from commit 3743686e4c0cae0afa4d9d130fa3639f9aaf9488)
Merge branches 't-3418', 't-3420', 't-3422', 't-3459', 't-3460', 't-3461', 't-3462', 't-3463', 't-3465' and 't-3471' into stable-3.8.x