Removed unitval/in method that I was not using and still noodling on. Realized that a convert method would not serve the non-object units, so made a convert.m function that does this for both, and it will also do a unitless check on unitval objects and return them as plain doubles. Also made the new unit.m as the compliment to convert.m which doe sthe unit value declaration that units.m does but with a more sensible syntax and more efficiently since it isn't also serving the library management stuff that units.m is.units.m still serves the unit value and conversion syntaxes for old code (calling unit.m and convert.m), but should move to using unit and convert. Also factored the unit aliases function out to a file so that unit.m and convert.m can share it.
Initial commit
Merge branch 'master' of https://github.com/ryangray/matlab-units