gadu: simplify registration window, as protocol has changed

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gui: better YourAccounts window

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gadu: new remind password widget in GaduAddAccountWidget

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gadu: new remind password widget in GaduEditAccountWidget

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gadu: properly distribute 'remind' widgets

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gadu: remove unused code

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gadu: remove unregister account code

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gadu: remove unused code

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gadu: fix create account bevavior in configuration wizard

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gadu: #2728 fixed: replace code for registering account/password reminding with WWW calls

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>