* Make Pyth.initialize private
* Make contract upgrade more resillient + add fail test
* Remove deployCommitHash
The deployCommitHash process is error-prone and it's alternatives
require changing many parts of the code.
And as it is not used anywhere. I believe it is not
worth the effort.
* Improve price not found log
* Remove celo conf files as we are not there
* Remove some unused files
* Move common variables to cluster env
Also rename mainnet to ethereum
* Update migration scripts
* Remove ropsten, it's decommissioned
* Update template
* Create deployment script
* Add set fee migration step
* Comment out old upgrade process with good comments
* Address Tom comments
* Use a helper function for loading env
Ali Behjati