0.0301
    This module is discouraged now
0.0208
    attr default => '', pkg default => ''
0.0207
    use 5.008_001
0.0206
    Build.PL requires => { Carp => 1.04 }
0.0204
    add accessor( pkg, attr, val )
0.0203
    bag fix pos empty string 
0.0202
    sorry Simo::Error is change very much.
0.0201
    Experimental release

0.01_01
    First developper release.
