7-Zip 4.45 Beta

- Now it's possible to specify the size of solid block and the number
of CPU threads in "Add to archive" dialog box.
- Default dictionary size was increased: Normal: 16 MB, Max: 32 MB.
- Speed optimizations.
- Benchmark was improved (new "b" command in command line version).
- The number of DLL files was reduced.
- Now it's possible to associate 7-zip with combined types like .tbz2
- switch -mhcf=off is not supported now.
- If -t{Type} switch is not specified, 7-Zip now uses extension of archive to
detect the type of archive.
- Some bugs were fixed.
- New localization: Welsh.