Added print function for Baldacci,Galassi.Leardini convention
Restoring original input convention

Due to an old change, the input convention was different from the real one
Support for variables id
Solution in print starts with 1
Printing the solution vector in id order
More silent execution when doing s
Old dec_indent
Duplicate solutions problem solved!

There is an error in the pseudo-code, limit_var should be refreshed at every iteraction
Removed useless things for checking for duplicates