Consistent variable names: r.import and r.proj

[rshepard]

r.import has a an option called resample which defines the resampling method to use. r.proj has an option called method which defines the interpolation method to be used.

Seems to me that resamplig == interpolation and I recommend changing the r.import veriable name from 'resample' to 'method' for consistency. After all, they list the same transformation types.