Shown more information iteratively

ProJADE/eig can draw function contour and locations of the vector X and
U, and also a defined progressive rate.
Improved contour expression

Function contour is drawn with log function values. Number of the
contour line is increased to 30.
Illustrated ProJADE/eig evolution in f25
More information displayed in DE/best/1/eig
Refactored ProJADE/eig

Rename the variable 'nEvalX' to 'samples'.
Improved evaluation on resampled solutions
More information displayed in DE/rand/1/eig
More information displayed in JADE/eig
Refactored ProJADE/eig
Consistent codes in jadeeig.m and jadeeigv2.m
More information displayed in SaDE/eig
Removed DE/mean/2 families
Made SaDE/eig codes consistent with other DEs
Display errors in .4E format
Added more results in CLOP test functions