* removed the original test file for mincIO. This one was pointing to files on the system, not files from the tar ball, and was a duplication of the new mincIO test file.
* fixed a bug in the minc2_model code (modeling_functions.c). The variable p was not always initialized, but used in a variable called buffer1 (which if p wasn't initialzed, was then never used). The problem is that p could have any value, and when it was negative, the buffer that was created was being created with a negative length.
* removed the try-catch block in mincApply. The reason that that call sometimes failed, is because passing in matrix() as the thrid argument to minc2_model got you in the situation that was uninitialized, and as such sometimes worked and sometimes didn't. With that being fixed, no try-catch is necessary anymore.
* also dealt with the protects in minc2_model using a counter which is incremented after each call of PROTECT()
* fixed code alignment (spaces vs tabs etc.)