changes for lvmini
New version of LVMini which uses the two classes made by Jan to compute the numerical derivatives: NumGradFunction and NumericalDerivator The classes implement the adaptive numerical deviator method used by Minuit
Remove executable file from repository
Add support for variable transformation to LVMiniMinimizer

TODO: Calculate GlobalCC from covariance matrix
Use a transformed variable in testMinimize

Right now this produces an non positive-definite covariance matrix
with LVMini
Add a version of testMinimize where the transformation is done by hand