setup.py issues

[indrajitbarve]

Few things I need to change before installing the casperfpga package.

In requirements.txt I changed version katcp 0.6.2 to katcp 0.6.3
in the setup.py following corrections needed.
2A)data_files = ['src/tengbe_mmap.txt', 'src/tengbe_mmap_legacy.txt']
2B)include_package_data=True, We need to include this line inside setup
2C)package_data={ "": ["*.txt"],'casperfpga': data_files},