Adding manually created FITS file for Bsplines
Adding BSplineWCS and test case for linear spline
Fixing tests
Adding IRAF subclass for handling trasformation of pixel coordinates
Merge branch 'adding-spline-model' into adding-bspline-fits-readers
Changing class method to static method in BSplineModel
Adding IRAF WCS, and fixing npieces attribute name in BSplineModel
Merge branch 'placeholder' into adding-bspline-fits-readers
Converting class factory method in BSplineModel to init and fixing test cases accordingly; adding IRAF WCS for transformations and changing calls from normal to IRAF WCS
Changed xrange from standard python to six.moves.xrange
Reverting BSplineModel changes
Reverting BSplineModel tests
Adding class methods to BSpline subclasses
Adding from_data class method in IRAFSpline class, changing name of n_pieces to num_parameters in BSplineModel
Reversing change of name in BSplineModel due to conflict
Merge pull request #72 from shaileshahuja/adding-bspline-fits-readers

Adding bspline fits readers