Augur App v1.10.3

Updated geth light client version and new rinkeby endpoint

🎊 For those of you using the local light client, we've updated version 1.8.23 of Geth.
💪 Are you using Augur with the Rinkeby Testnet? The endpoint is now hosted by Alchemy.

Platform	SHA 256 Checksum
Windows	9d5bd60f06f42295e3c1354913106e4512f4095cb30630a6821e65977d178c2c
Mac	76ac9ea79ad52c95d3ca464a71f83c863099471f6077b96fecc0d004b81a213e
Linux (deb)	d94fcdac93de714eb0246f87eb2a5fd741c60e174d744f0a098b4415cc2c8537
Linux (AppImage)	b451fc8866845349ae99eb7b4f3fdde52b0aa9620a9ed81cfa84f8d62e005b63