Release 3.6

This is a major release with performance improvements, extended Unicode support and several minor improvements and fixes. This is the list of changes:
- improved interface
- improved performance
- improved Sorting window
- improved support to Unicode for patterns
- added alert for Delete actions
- added auto-detection of OS language
- added %Desktop% environment variable
- added support to copy dropped files to a selected folder (hold Ctrl+C at drop)
- added support to copy paths of dropped files to Clipboard (hold Ctrl+P at drop)
- added support to create shortcuts of dropped files in a selected folder (hold Ctrl+S at drop)
- added support to move dropped files to a selected folder (hold Ctrl+X at drop)
- added support to sort HTML lists clicking column headers (disabled by default)
- added support to switch profiles with mouse scroll wheel
- fixed minor bugs