* refactor and expose swapping as a single method
* fixes after rebasing on latest 2.0
* fix optional parameters for swapping
* add `fullSwap` to internal API
* swap refactor polishing
* make linter happy
New function to turn off the logger after using `logAll()`. I applied to
this to the tests as well so that `logAll()` is only used in the specfic
places where debug output is required. This makes the console output of
the tests dramatically more useful when run from the command line.