YaCC v1.0 RC4 released

Tonight YaCC version 1.0 release candidate 4 is released.
It now supports merging commands in the RAM while editing existing commands. Additionally a link to this project site on SourceForge.net was added in the information dialog.
Preview on the final release: Tomorrow there will be a further practical test. If this test will be successful a final release can be published. The final version includes a new start parameter: -l or --lookandfeel can be used to set YaCC's look-and-feel. Now YaCC always loads the system default one.