Implement SI_matrix constructor with string in GAP code
]]></Example> in new line
SI_ring( ) = SI_ring( 32003, "x,y,z" )
added string-version of SI_matrix to the example
Rename SI_Undef -> SingularUnbind, SI_ValueOfVar -> SingularValueOfVar
Rewrite SI_ideal & SI_ideal 'string' constructors in pure GAP
Remove old C++ code for creating SI_ideal/matrix/poly from strings
Remove obsolete naming conventions description
New namespace: SIC_ (for 'convenience')

First entries: factories for identity & zero mat
Rewrite SI_vector string constructor
documented SI_nrows, SI_ncols
SI_matrix( ideal ) in example
documented SI_transpose
documented SI_det
fix memory leak in SI_ring constructor
Get rid of _SI_MONOMIAL, _SI_MULT_POLY_NUMBER, _SI_COPY_POLY
Remove superfluous 'length' parameter from SI_vector constructor

Now it matches the documentation, too :)
Add two new GAP source files: view.gi and types/matrix.gi
cleanup
added vectors in examples for SI_nrows/SI_ncols/SI_transpose