UI config: form wide changes

[Benjamin Cordes]

currently the UI contains buttons for each field. A better approach is to scan the form for changes and submit the config as a whole. this requires a bit more generic approach how json is processed on client and server, and therefore is left open for a later milestone.

[Desrever Nu]

Removing milestone: 0.4.1 - Market-aware liquidity distribution models ( adaptive ) (automated comment)