Path Constraints in depth:
0:08 Path Constraints
0:51 Setup
2:03 Position Mode
2:58 Spacing Mode
3:48 Rotate Mode
5:58 Translate Mix
6:35 Rotate Offset
6:51 Keying
7:10 Color
Accompanying Spine User Guide article:
http://esotericsoftware.com/spine-path-constraints
