* use check
* trunner now works with cpp
* cleanup: move compiler/unittest_light => stdtest/unittest_light
* fix tests/readme.md
* remove deadcode references to rodfiles
* fix for windows
* Error -> Defect for defects
The distinction between Error and Defect is subjective,
context-dependent and somewhat arbitrary, so when looking at an
exception, it's hard to guess what it is - this happens often when
looking at a `raises` list _without_ opening the corresponding
definition and digging through layers of inheritance.
With the help of a little consistency in naming, it's at least possible
to start disentangling the two error types and the standard lib can set
a good example here.
