Release 4.5

This is a major release with important improvements, new features and fixes. This is the complete list of changes:
- improved abbreviation system
- improved interface
- improved performance
- added "Change Properties" action (date, time and attributes)
- added "Upload" action (FTP and SFTP protocols)
- added message during uninstalling to decide if remove settings
- added profile option to manage duplicates
- added several abbreviations
- added support to create custom abbreviations
- added support to drag&drop files/folders on destination field
- fixed %DateTaken% abbreviation
- fixed minor bugs