Configure AJA device

0. Dependency:
g++, libasound2, libsound2-dev, and libncurses5-dev
For Qt-based demo, qt4-dev-tools is required. qt4-dev-tools doesn't include QtMultimedia which is required by the demo program.

In Ubuntu:

sudo apt-get install libasound2

sudo apt-get install autoconf

1. In terminal, under directory ntv2projects in the SDK. Use make command.

2. Load the device driver: sudo SDK_Dir/bin/loadOEM2K

3. Verify XENA2 is installed using 'lsmod'

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Load .ko (driver) from boot (DO NOT WORKED FOR AJA DEVICE):
1. copy the XENA2.ko to /lib/modules/3.16.0-41-generic/kernel/drivers/ntv2
2. edit /etc/modules and add a line "XENA2"
3. "sudo depmod -a"
4. reboot
Make sure the kernel version is the one currently used.
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Base on discussion in this link. To avoid linking error of pthread, following lines need to be added to the CMakeLists.txt due to a cmake bug.

1. set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pthread")

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