0.7.7 : When create group option is checked, the original layer visibility is
preserved.
thanks to Eric LAZZARETTI
0.7.6 : Better documentation
0.7.5 : Tooltip refinement
0.7.4 : Some python cleaning
0.7.3 : New layer id without special characters
0.7.2 : Some optimizations
0.7.1 : QGis 2.4 compatible. Deprecated functions are deleted
0.7 : Works with "relative path" projects, and embedded layers
0.6 : QGis 2.2 compatible
0.5 : QGis 2.0 compatible
0.4.1 : Load all layers item, create group option (dev version 1.9)