Convert line endings.
The pattern storage shall save encode patterns.
Use the Patterntable destructor to clean up.
Use indirekt pointer for current pattern name.
Use the selected pattern.
Revert "The pattern storage shall save encode patterns."

This reverts commit 10658e6aecebee96070e84f79b7ca36d6d5049d5.
Add copy and delete buttons to the pattern table.
Update version to 3.0b2.