Updated to v1.2021.7.20.

* Fixed accidentally storing the wrong path, causing excessive amounts of repeat work.

* Fix the new update message not linking to the correct URL due to missing the preceeding 'v'.

Updated to v1.2021.7.10.

* New default setting for pingo's optimization level is `-sb` as it is guaranteed to be as good as `-s9` or better, and usually, the time difference between the two is extremely minimal.

* Fixed #95 by properly copying over the subfolder structure to the temp folder. Includes some miscellaneous updates/refactoring required to get this to work.

Updated to v1.2021.3.29.

- Removed a check for whether or not the command text boxes were empty, rebuilding the command string if so (but not updating the text box).

+ Added checks to ensure `%1` is present in the magick and pingo commands.

* Renamed the temp folder name to be "_imgdanketmp".

Updated to v1.2021.3.25.

* Fixed the default magick command strings being outdated, meaning the magick command would not skipped if it would do nothing.

* Fixed ShouldDeleteOriginals only deleting a single file due to an erroneously placed break statement.

* Temp folder path is now the actual Temp folder path if source path is on the same drive as it, otherwise first attempts to create the temp folder on root of the source folder, otherwise the root of the output folder, before finally falling back to the real Temp folder path (which would incur a copy).

* Updated another missed line to use the new, shorter "new" statement syntax.