Richer exception for tkregister. Closes #50.
More detailed error messages
Revert "More detailed error messages"

This reverts commit fbb9096b02da73fda80d40e28c44fe45d2e8e96a.
Add output reporting to tkregister
Merge pull request #88 from chrisfilo/fix/tkregister_error_reporting

Fix/tkregister error reporting