Explicitly only support python 3

on-behalf-of: @StackStorm-Exchange <[email protected]>

v0.4.4 release tag.

v0.4.3 release tag.

v0.4.2 release tag.

v0.4.1 release tag.

v0.4.0 release tag.

v0.3.0 release tag.

Add requirements.txt file to tet ci test task.

Add another search term

Testing CI