• Fix problem with ssh connections not being correctly closed and released when sftp channel creation fails.
• Fix problem with global tracking of temporary listeners and some listeners being removed too early when function calls other function provided by the library
• Add additional check in mkdir to increase efficiency of mkdir calls in general case
• Bump versions of development libraries

While this version does not change the API, as it does represent fundamental change to the way temporary event listeners are managed, it is being released as a new minor version rather than just a new patch version.