secp256k1 build changes.
secp256k1 build changes.

secp256k1 already including through absolute path. require libgmp for
OSX and LINUX

aspaas/ion,aspaas/ion,transferdev/Transfercoin,Infernoman/Transfercoin,bryceweiner/mojocoin,bryceweiner/mojocoin,Infernoman/Transfercoin,aspaas/ion,Infernoman/Transfercoin,syfares/Transfercoin,syfares/Transfercoin,Infernoman/Transfercoin,syfares/Transfercoin,syfares/Transfercoin,aspaas/ion,bryceweiner/mojocoin,transferdev/Transfercoin,Infernoman/Transfercoin,transferdev/Transfercoin,MinuteManReserve/mmr-core,transferdev/Transfercoin,transferdev/Transfercoin,bryceweiner/mojocoin,bryceweiner/mojocoin,MinuteManReserve/mmr-core,aspaas/ion,transferdev/Transfercoin,bryceweiner/mojocoin,aspaas/ion,syfares/Transfercoin,syfares/Transfercoin,MinuteManReserve/mmr-core,MinuteManReserve/mmr-core,MinuteManReserve/mmr-core,Infernoman/Transfercoin