Just a few bugfixes:

• Skip fields with toml:"-" even when they're unsupported types. Previously something like this would fail to encode due to func being an unsupported type:

  struct {
      Str  string `toml:"str"
      Func func() `toml:"-"`
  }

• Multiline strings can't end with \. This is valid:

  # Valid
  key = """ foo \
  """
  
  # Invalid
  key = """ foo \ """

• Don't quote values in TOMLMarshaler. Previously they would always include quoting (e.g. "value"), while the entire point of this interface is to bypass that.