syncthingctl: download ældre versioner

**The built-in Syncthing library was updated to 2.1.7.** So be sure to read about the major changes in 2.1 on https://github.com/syncthing/syncthing/releases/tag/v2.1.7 if you are using the built-in Syncthing library.

**Full Changelog**：https://github.com/Martchus/syncthingtray/compare/v2.1.8...v2.1.9

**The built-in Syncthing library was updated to 2.1.6.** So be sure to read about the major changes in 2.1 on https://github.com/syncthing/syncthing/releases/tag/v2.1.6 if you are using the built-in Syncthing library.

`syncthingtray-2.1.8-x86_64-pc-linux-gnu.tar.xz` was reuploaded to fix the dashboard which was completely broken in the initial build.

**Full Changelog**：https://github.com/Martchus/syncthingtray/compare/v2.1.7...v2.1.8

**The built-in Syncthing library was updated to 2.1.5.** So be sure to read about the major changes in 2.1 on https://github.com/syncthing/syncthing/releases/tag/v2.1.5 if you are using the built-in Syncthing library.

**Full Changelog**：https://github.com/Martchus/syncthingtray/compare/v2.1.6...v2.1.7

**Full Changelog**：https://github.com/Martchus/syncthingtray/compare/v2.1.5...v2.1.6

**The built-in Syncthing library was updated to 2.1.5.** So be sure to read about the major changes in 2.1 on https://github.com/syncthing/syncthing/releases/tag/v2.1.5 if you are using the built-in Syncthing library.

**Full Changelog**：https://github.com/Martchus/syncthingtray/compare/v2.1.4...v2.1.5

The built-in Syncthing library was updated to 2.1.2. So be sure to read about the major changes in 2.1 on https://github.com/syncthing/syncthing/releases/tag/v2.1.2 if you are using the built-in Syncthing library.
Full Changelog：v2.1.2...v2.1.3

The built-in Syncthing library was updated to 2.1.2. So be sure to read about the major changes in 2.1 on https://github.com/syncthing/syncthing/releases/tag/v2.1.2 if you are using the built-in Syncthing library.
Full Changelog: v2.1.2...v2.1.3

The built-in Syncthing library was updated to 2.1.1. So be sure to read about the major changes in 2.1 on https://github.com/syncthing/syncthing/releases/tag/v2.1.1 if you are using the built-in Syncthing library.
This release contains no changes in Syncthing Tray itself. It only updates the built-in Syncting library and changes build flags for Windows ARM to address #443.
Full Changelog: v2.1.1...v2.1.2

The built-in Syncthing library was updated to 2.1.0. So be sure to read about the major changes in 2.1 on https://github.com/syncthing/syncthing/releases/tag/v2.1.0 if you are using the built-in Syncthing library.
Full Changelog: v2.1.0...v2.1.1

The built-in Syncthing library was updated to 2.1.0. So be sure to read about the major changes in 2.1 on https://github.com/syncthing/syncthing/releases/tag/v2.1.0 if you are using the built-in Syncthing library.
Full Changelog: v2.0.10...v2.1.0

The built-in Syncthing library was updated to 2.0.16. So be sure to read about the major changes in 2.0 on https://github.com/syncthing/syncthing/releases/tag/v2.0.16 if you are using the built-in Syncthing library.
Full Changelog: v2.0.9...v2.0.10

The built-in Syncthing library was updated to 2.0.15. So be sure to read about the major changes in 2.0 on https://github.com/syncthing/syncthing/releases/tag/v2.0.15 if you are using the built-in Syncthing library.
Full Changelog: v2.0.8...v2.0.9

The built-in Syncthing library was updated to 2.0.15. So be sure to read about the major changes in 2.0 on https://github.com/syncthing/syncthing/releases/tag/v2.0.15 if you are using the built-in Syncthing library.
Full Changelog: v2.0.7...v2.0.8

The built-in Syncthing library was updated to 2.0.14. So be sure to read about the major changes in 2.0 on https://github.com/syncthing/syncthing/releases/tag/v2.0.14 if you are using the built-in Syncthing library.
Full Changelog: v2.0.6...v2.0.7

The built-in Syncthing library was updated to 2.0.13. So be sure to read about the major changes in 2.0 on https://github.com/syncthing/syncthing/releases/tag/v2.0.13 if you are using the built-in Syncthing library.
The built-in Syncthing library also contains the change to skip point-to-point interfaces on Android that did not make it into the official v2.0.13 release. This may help improve battery life.
The bundled version of Qt also contains a potential fix for deadlocks under Android.
Full Changelog: v2.0.5...v2.0.6

The built-in Syncthing library was updated to 2.0.12. So be sure to read about the major changes in 2.0 on https://github.com/syncthing/syncthing/releases/tag/v2.0.12 if you are using the built-in Syncthing library.
Full Changelog: v2.0.3...v2.0.4

The built-in Syncthing library was updated to 2.0.11. So be sure to read about the major changes in 2.0 on https://github.com/syncthing/syncthing/releases/tag/v2.0.11 if you are using the built-in Syncthing library.
Full Changelog: v2.0.2...v2.0.3

The built-in Syncthing library was updated to 2.0.10. So be sure to read about the major changes in 2.0 on https://github.com/syncthing/syncthing/releases/tag/v2.0.10 if you are using the built-in Syncthing library.
Full Changelog: v2.0.1...v2.0.2

Full Changelog: v2.0.0...v2.0.1

Full Changelog: v1.7.10...v2.0.0

v1.7.10

The GNU/Linux executable has been re-uploaded as the initial build was crashing on Wayland.

v1.7.7

v1.7.6

v1.7.5

v1.7.4

v1.7.2