Some strange bug with frmHistory: each time I copy all source
from one computer to another it can't be compiled because frmHistory not
found.
- EqualsByAnyOtherName implemented for LoadImageCommand, to speed-up ops.
- done boolean is removed because ActiveBranch does the same work.
Auto-creation of frmHistory removed
Some corrections at commands: ui refresh removed from them so comands can be executed and undone in 'zombie mode'