Errors in latest version
```
./xmrig-nvidia -o pool.minexmr.com:4444 -u 4B78kerqaWTWjsUVb7xvmVcRkPfruTr7SLFoCDZek6j3f8jtyDXkvSFNxEDZgZ8NXZ8FPK5pCXghuTmz8vnLHeLfHYZs82u --donate-level=5 --print-time=60 
 * VERSIONS:     XMRig/2.3.1 libuv/1.8.0 CUDA/7.50 gcc/5.4.0
 * CPU:                 Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz x64 AES-NI
 * GPU #0:       GeForce GTX 760 @ 1150/3004 MHz 32x18 0x0 arch:30 SMX:6
 * GPU #1:       GeForce GTX 560 Ti @ 1701/2052 MHz 32x16 0x0 arch:21 SMX:8
 * ALGO:         cryptonight, donate=5%
 * POOL #1:      pool.minexmr.com:4444
 * COMMANDS:     hashrate, health, pause, resume

GPU #1: out of memory
cryptonight_extra_cpu_init line 194
```
Wouldn't compile for architecture 21;30, so I compiled for 20;30. Ran into these errors. I'm using Ubuntu 16.04.3 LTS with CUDA 7.5. Maybe I compiled or ran the program incorrectly.