Set release 1.2.1 activation block

Set mining timestamp v2 activation height

Merge pull request stratisproject#820 from fassadlr/fixfedmembers

Can inject null IPoaMiner into FederationController

Merge pull request stratisproject#693 from fassadlr/merge692

Merge Further improvements to package version check logging (stratisproject#692)

Move init logic to initialize method (stratisproject#560)

Merge Wallet Get Transaction Performance fix (stratisproject#482)

Update ConnectionManager.cs (stratisproject#427)

Update STRAXSidechainRegistrationScript.ps1

Bump (stratisproject#257)

Fix 5284 Partial validator failed (Fault Reason: The given key 'XJuG2…

…UrEVW8wxMK5QVfg3puMHPRhkfpciF' was not present in the dictionary.) (stratisproject#252)

* Update CollateralChecker.cs

* Remove unneccesary logs