Version 2016.05.1.0

This update fixes 2016.04.1.0, where some of the provided builds could not import the paper wallets.

MacOSX users can keep using 2016.04.1.0, as that build isn't affected.

SHA256sums:
8da1ab7777ee563e96cae831b3bb9e149bdd9600434aa695987771e6365df07a auroracoin-2016.05.1.0.tar.bz2
4e7106b6d18b9888d16af71144ecddec10540a28fa2877324dc1b257937964c6 auroracoin-qt-2016.05.1.0.exe
c51a3cf736339f900e374f4917762c53e417b1a866ae5c7e24f1189ef275b6a3 auroracoin_2016.05.1.0-0ubuntu1_i386.deb