Bugfix: fix non-short-curcuit logic
Add code comments
Bugfix: remove redundant check for null
Rework properties view
Bugfix: don't synchronize on a boolean
Fix bugs and format code
Bugfix: correctly call wait()
Code formatting
Add code comments
Add code comments
Add code comments
Remove redundant null check
gui: wizard: importdata: ColumnPage: Fix formatting
Remove redundant null check
gui: wizard: importdata: ColumnPage: Add javadoc
Add code comments
Remove redundant code
Code rework and comments
Bugfix: correctly compute relative value of information loss
Simplify, document and format code