Delete deprecated libraries/btsx
Delete deprecated libraries/dns
Delete deprecated libraries/kid
Delete deprecated libraries/lotto
Delete deprecated libraries/me
Disable libraries/mail compilation
Disable libraries/network compilation
Delete deprecated fee rate references

Conflicts:
	libraries/blockchain/include/bts/blockchain/exceptions.hpp
Separate transaction relay fee and wallet transaction fee
Fix regression tests
Revert "Revert LevelDB upgrade"

This reverts commit fd14a05d53ba0845fd810796dcc11920d83b3582.