Release candidate one for SiaPrime v1.4.0. All tests passing, syncs
with the blockchain, and can send SCP. Currently not abot to create
new file contracts for hosting but I suspect it is because there
are no SiaPrime v1.4.0 hosts on the networkor because I was trying
to use the SiaPrime v1.3.8 UI to do so as the hosting and renting
tests pass.