quantity.Discrete.diff: previously, if diff("z", 0) was used, not the 0th derivative w.r.t. z was calculated but the 1st. This bug is now fixed.

misc.solveGenericBvpFirstOrder: catch the case that jordan form is not recognized due to numerical uncertainty -> round()

misc.place: different to builtin place, arbitrary eigenvalues can be set, that includes eigenvalues of multiplicity greater than rank(B)
+ some comments.

Added plot section to the example file, more detailed description of numeric data access and some minor issues

misc.synchronisationWithSpectrumConstraints: implements the synchronisation problem of homogenious networks with spectrum constrains via the LMI-toolbox

minor change in quantity.Symbolic (use of setName)

- kron() new
- index() deleted
- getSpacing simplified
- ones, zeros simplified

quantity.Discrete.solveAlgebraic: findBetween argument not necessary? Some testing before deletion needed.

some clean up