* Upgrade status-go to bugfix-no-messaging-rinkeby-gd04e667-12 (geth 1.7 rebase)
* [bug] fix#2089 and #2098 with geth update
with geth 1.7 addresses are passed with 0x prefix and mix of lower/upper cases
update the normalize hex function so that addresses are always without prefix
and entirely lower-cased.