The getusertime call was pretty confusing, since it didn't return user time at all.
Also, it seems a bit more obvious for usage() to simply return exactly what getrusage returns.
Presumably there aren't too many uses out there this would break, but if you'd prefer a backwards-compatible change, I suppose I could do that.
Make usage() return all rusage fields directly, and rename getusertim…
…e() to getsystemtime().
Merge pull request #3 from humcycles/feature/system-terminology
Make usage() return all rusage fields directly, and rename getusertime() to getsystemtime().
Merged and bumped the version to 0.2.0 since it's an API change, Thanks!