Readlines fixes for NC and NIR
Use more efficient GDALRasterBandCopyWholeRaster
Added remaining CPLErr return handling
Added OGRErr -> Exception handling
Whoa--I'd added *.rb to gitignore!!

Consequently, files that I thought had been committed had not.  Wow…
#to_na refactoring
Use the new pointer_type method
Merge pull request #8 from turboladen/feature/fix_nc_nir

Feature/fix NC, NIR