- test: Add simple string diff (Lauri Rooden)

Fixes:

 - Fix inserting integrity (Lauri Rooden)

Enhancements:

 - build: Rename xhr.view to xhr.ui (Lauri Rooden)
 - test: Merge message and op (Lauri Rooden)
 - test: Expose test global by default (Lauri Rooden)