I have multiple projects and I want the column action to move a card is already in a project, to a specific column within that project. If the card does not have a project than no action occurs or I can send it to a "unassigned" project, if I need to have some field available.

This regex is missing a g (global) flag.
As it is now it will only replace the first occurrence it finds.

https://github.com/mjswensen/shoulders/blob/fa665f78f0d1c66db72ce3dd026d866268551adc/index.js#L26

Introduced in #2