rename LengthValue.from{Value,Dictionary} to an overloaded from method

[heycam]

1. I don't think we should be exposing the term "dictionary" to authors, as it's really just an internal spec term.
2. We can safely overload these two methods.

So how about having:

interface LengthValue {
  ...
  static LengthValue from(double value, LengthType type);
  static LengthValue from(CalcDictionary dictionary);
};

[heycam]

For that matter, any reason not to rename parse to from too? It's just another way of providing the data required to construct a LengthValue.

[shans]

5af56ec