Added common initialize to lbfgs
fixed some issues with display, but issues remain
Fixed display functions in lbfgs
Display now working properly
Changed to absolute norm convergence rather than divided by the length of the vector
Added optimize method to lbfgs
Added optimize method to cubic
Made SetInit and SetCurr copy the slices
Also fixed in basic tol float slice
Fixed lbfgs test
Added initialize check for user defined function in LBFGS
Fixed bug where history is always saved
Added step() method to lbfgs
Added initguesser interface and added call to lbfgs
Fixed initguesser call in lbfgs
Fixed initguesser call in lbfgs
Fixed optimize method of lbfgs and added Optimize method to MisoGradBasedOptimizer
Fixed optimize method call in MisoGradBasedOptimizer
Added SetResult() method to lbfgs
Updated lbfgs and cubic to check convergence from Common