JREs prior to 8u101 do not ship with the root certificate that cross-signed
the LetsEncrypt X3 CA used to sign server certificates.
As the standard native Minecraft launcher for Windows and OSX ship with an
older Java version, this commit imports the required root cert and uses it
wherever communication with the replaymod.com server is established.
Effectively reverts 682fb4b
The Java version shipped with the default Minecraft launcher for Windows and
OSX, is quite old and does not contain the necessary root certificates for
properly accepting LetsEncrypt's certificates.
This can be reversed once the Minecraft launcher ships at least 1.8.0_101.
