roxygenise
Merge branch 'feature/nlapply-failures'

* closes #141
* feature/nlapply-failures:
  roxygenise
  dev: add more contexts for neuronlist tests
  Give nmapply an OmitFailures argument as well
  Don’t print error messages when OmitFailures=T/F
  test nlapply with OmitFailures
  Give nlapply an OmitFailures argument