Polygon support

Add Polygon  (#77)

* Added an endpoint for Mumbai/Matic mainnet

* v1.4.6

DAI Integration version

Docker (#58)

* Add docker files

* Add docker files

* Deploy dummy contract

* Update instruction

* Update docker

* Add more instructions

* Update instruction on how to update new docker image

* Update deploy new party

* Update shared

* Only ask for 0.03 as buffer

* Finalise one at a time

* Add transaction info

* Save address to kickback-subgraph

This is the last known deployed version to live.kickback.events before big merge

Docker (#58)

* Add docker files

* Add docker files

* Deploy dummy contract

* Update instruction

* Update docker

* Add more instructions

* Update instruction on how to update new docker image

* Update deploy new party

* Update shared

* Only ask for 0.03 as buffer

* Finalise one at a time

* Add transaction info

* Save address to kickback-subgraph