Releasing v0.26.0

Removed cancel token request test till debugging on FireFox can be done

Adding minfied files

Release v0.23.0

Updated date

Merge branch 'master' into release/0.21.4

[Releasing] 0.21.3

[Updating] changelog to include links to issues and contributors

Releasing 0.21.1

Releasing 0.21.0