0.2-1 Vectorised cause attributes.
      Error messages give clearer indication of problem elements.
      Many more reflection functions.
      More flexible length/dimension checks.
0.2-0 Added more connection checks, and capability checks. 
      Tests now use testthat rather than RUnit.
0.1-9 coerce_to handles multiple classes. Regex and doc fixes. More tests.
0.1-8 NA handled correctly in regex fns.
0.1-7 Added time and US string fns.
0.1-6 Added UK string fns.
0.1-5 Added regex functions.
0.1-4 First public release.
