generator: update rhogen, colorize error and warning messages, put template name only in case of exceptions, check for duplicate constant names
generator: update rhogen, colorize error and warning messages, put template name only in case of exceptions, check for duplicate constant names

rhosilver/rhodes-1,rhosilver/rhodes-1,louisatome/rhodes,rhosilver/rhodes-1,UIKit0/rhodes,louisatome/rhodes,louisatome/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,UIKit0/rhodes,louisatome/rhodes,louisatome/rhodes,rhosilver/rhodes-1,rhosilver/rhodes-1,rhosilver/rhodes-1,louisatome/rhodes,louisatome/rhodes,louisatome/rhodes,UIKit0/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,UIKit0/rhodes,UIKit0/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,louisatome/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,UIKit0/rhodes