Raiden Network Files

A lot of work on the transport layer as well as the services went into this release. To improve performance and reliability on the transport layer it was necessary to implement some backwards incompatible changes.

Backwards compatibility status: - v2.x clients WILL NOT be compatible with and not be able to perform transfers with any earlier versions - The EXISTING CLIENT DATABASE WILL ALSO NOT BE COMPATIBLE. This means channels opened with older versions need to be closed, settled and re-opened. This shouldn't cause any particular harm on test-networks. For mainnet we will provide support for users.

Changelog: * [#7120] Fix for transport potentially blocks at long http response times * [#6673] Remove refund transfers. Refunds were intended as a way to quickly unlock funds in case a transfer can't be completed without having to wait for the lock to expire. Unfortunately they were never very good at achieving this goal and added a lot of complications to the codebase. Therefore they got removed. See the linked issue for more details. * [#7064] Fix building of binary bundles which was broken for a while. * [#6986] Increment DB version - this will make this release incompatible with previous releases. Please refer to the known issues section in the docs for details. * [#6851] Raiden does not use Matrix rooms anymore. This greatly reduces the load on the matrix servers and increases the reliability of the transport layer. * [#6898] Add support for Geth 1.10. * [#6947] Add support for Python 3.9. * [#6821] API endpoint for UserDeposit contract deposits/withdraws * [#6763] Ensure that pending messages are sent before Raiden is stopped * [#6838] Add /notifcations endpoint for showing notifications and warnings to the user. * [#6563] Faster syncing with the blockchain. * Update WebUI to version 1.2.1. Introduces a new "Quick Connect", that is simpler and more transparent than the old "join token network" feature, and adds a dialog for interacting with the UserDeposit contract (UDC). * [#4730] Remove "join token network" feature from API. Explicitly create and fund channels, instead. * [#6582] Add /settings endpoint with information about the used pathfinding service. * [#6657] Support for recent geth versions. * [#6541] Remove internal routing.