v2.15.1

Patch Changes

• #1619 df283d3cc Thanks @aulneau! - Fixes bug where balance contained a comma, thus preventing it from being converted to a BigNumber

• #1614 7a0cd03a2 Thanks @aulneau! - This fixes a rare bug where if an address has received more transactions than we fetch for, it would assume it was a fresh account and return the incorrect nonce.