This was needed for IE8 and IE9

Was needed for IE8

closes #7571

closes #7570

Also add "it" as fallback for "oc" and "sc"

The user_email is the first field anyway, and login form as a
user_username field too, so it maybe happens that we already fill in the
user_username filed there before page load finished.

closes #7556

closes #7551

closes #7530

closes #7554

closes #7548

closes #7547

closes #7546

closes #7545

closes #7544

closes #7543

closes #7542

Fixes #7541

Account migration model/message

added tag for supporting apps prior to Chrome M39

This commit introduces support for AccountMigration federation message
receive. It covers the cases when the new home pod for a user is remote
respective to the recepient pod of the message. It also allows to initiate
migration locally by a podmin from the rails console. This will give the
pods a possibility to understand the account migration event on the
federation level and thus future version which will implement migration
will be backward compatible with the pods starting from this commit.

Add explicit mutual contact creation to the DataGenerator#generic_user_data
which is used in account deletion tests.

updates tag to follow standard styleguide

Re-add disconnect_contacts in AccountDeleter

Update thor, coveralls and simplecov

Remove avatar, name, timestamp and interactions from publisher preview