v0.7.1

Mostly a bug fix release.

Improvements:

• you can now use absolute screen coordinates with --transition-pos (by @flick0)

Fixes:

• swww query not returing the image being displayed
• document --no_resize and --fill_color options for swww img
• reading img from stdin was failing (now with a proper integration test to make sure it doesn't happen again) (#42)

Internal:

• fixed tests/integration_tests.rs calling the wrong swww-daemon binary