Checking potential problem in function att_update.m, relates to #101

[Rodrigo Gonzalez]

5.att_update.m
%% Gyros output correction for Earth and transport rates

wb = ( wb - DCMbn' * (omega_ie_n + omega_en_n));

->>>
If omega_ie_n and omega_en_n are matrices,
The above writing is wrong, because the output wb is a matrix, not a vector.
If omega_ie_n and omega_en_n are edited to two vectors as No.1 & No.2 proposal,
Such a program is right, otherwise there will be a problem.

[Rodrigo Gonzalez]

This code is outdated. Please, check the last version of this function.