Core Twig extensions language part
Merge pull request #1891 from Kaik/core_twig

Core Twig extensions language part
Revert "Including files, to correct fatal error."
Merge pull request #1894 from zikula/revert-1886-console

Revert "Including files, to correct fatal error."
correct stub loaders
fix typo in mailer
attempt to correct final login process
correct modname when core
rework user attributes migration
fix 'headers already sent' errors
remove getPassedValue usage. Utilize redirect if only one language available.
Merge pull request #1898 from craigh/upgradeFixes

Upgrade fixes
this was an incorrect change. reverts 447b0b930e731bef720ff84557967f738c0f4cc6
update some missing systemvars in upgrade
Menutree css fixes
Do not render block if module isn't active.
Add bundle to Kernel when it's going to be updated.
Added writable check for dynamic config folder.
Do not set arguments as request attributes (as it might override other important attributes).
Fixed ajax BC break.