mpt_getFullRankSubset

MPT_GETFULLRANKSUBSET Removes rows from matrix Gt until it has full row rank

 [Gt, keptrows]=mpt_getFullRankSubset(Gt)

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 DESCRIPTION
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 It returns all (or just one) full row rank matrices and the rows which were 
 kept from the original matrix.

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 INPUT
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 Gt            - matrix
 AllSubsets    - Return all subsets or just one; set to 1 or 0 respectively;

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 OUTPUT                                                                                                    
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 Gt        - matrix having full row rank (is cell if all subsets are returned)
 keptrows  - indices of the rows that were NOT eliminated