v0.9.1 for emoney-2 mainnet

Changes since previous candidate:

• Consensus breaking change to buyback module that fixes a rounding error.
• Cleanup of market module events and messages while improving documentation.
• Add "aggressive" attribute to market fill events.

Changes since v0.6.7:

• Implements inflationary NGM token model and buyback module.
• DEX now supports both limit and market orders as well as order lifetime controls (GTC, IOC, FOK).
• Upgraded Cosmos SDK v0.39.1* "Launchpad" to ensure we are on track to support IBC.

* Please note that you will need to migrate the keystore using emcli keys migrate with Cosmos SDK v0.39.1.

SDK update

This release updates the dependency of the Cosmos SDK from v0.37.9 to v0.37.13.

The primary reason for upgrading was to get a bugfix for the CLI's Ledger integration, which was broken by a recent change to the Ledger app.

If you encounter the error ERROR: please open Cosmos app on the Ledger device - error: [APDU_CODE_INS_NOT_SUPPORTED] Instruction code not supported or invalid when using emcli, this upgrade should fix it.

Release for the emoney-1 mainnet

Please visit https://github.com/e-money/launch for the genesis file and details related to the launch.