add revised mson spec
clarify variable property name
clarify variable value
fixed type definition section numbering
break up examples
clarify Type Name Variable wording
simplify nested definition
add missing headers
fixed broken link and generic named type typos
fix inheritance examples
added promise wording
clean up Type Attributes
expand one of definiton to include Member Type Group
escape keywords in block descriptions
add mixin type wording w/r block descriptions
address MUST using headers for Type Sections
fix typo
fix indentation an misc syntax
fix header type
Merge pull request #5 from fosrias/feature/revised_mson_spec

Revised MSON specification