* created a directory "matlab/matlab", for functions missing under Matlab (but existing under Octave)
* created a directory "matlab/octave", for functions missing under Octave (but existing under Matlab)
* moved "mex/octave/rcond.m" to "matlab/octave/"
* moved "matlab/rows.m" to "matlab/matlab/rows.m" (Octave has builtin "rows")
* renamed "matlab/cols.m" to "matlab/matlab/columns.m" (Octave has builtin "columns")
* moved "matlab/distributions/toolbox" to "matlab/matlab/stats"
* adapted "dynare_config.m" to reflect these changes
git-svn-id: https://www.dynare.org/svn/dynare/trunk@2628 ac1d8469-bf42-47a9-8791-bf33cf982152
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