New features:
For SFTP servers the private key file to use can now be specified in the Site Manager
The contents of each queue tab can now be exported through the context menu
MSW: The installer now registers the App Path so that FileZilla is recognized in the Win+R dialog
FileZilla now uses pugixml instead of TinyXML to parse and create XML files
Several performance improvements
Code cleanup and modernization, building FileZilla now requires a C++14 compiler
Bugfixes and minor changes:
Fixed an assert loading sitemanager.xml created by an old version
If password saving is disabled, specifying a password on the command-line no longer leads to extraneous password prompts when transferring files
If deleting remote directories via the directory tree, navigate out of the directory tree that is to be deleted