jabber: filter out messages received from OTR

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
core: renamed FormattedStringFactory::fromHTML to fromHtml

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gadu: support receiving formatted messages over OTR from Kopete

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
otr: allow autodetection of message format in jabber

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gui: fixed leak with account edit widget code

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
history: removed HistoryBuddyDataWindowAddons
otr: fix configuration widgets behavior

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

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gui: use ConfigurationValueStateNotifier in ChatDataWindow

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

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
otr: switch history to use ChatConfigurationWidget

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
gui: remove unused friend declaration
otr: remove ChatDataWindowAwareObject class

Signed-off-by: Rafał Malinowski <rafal.przemyslaw.malinowski@gmail.com>
otr: use Manual as default policy for account

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