class reification (closes #23)
remove export from dev branch
started type building
Dynamic Arrays must be declared explicitly in Haxe 3
Added section on Std.Array -- Closes #19
Update PatternMatching.hx

My change from commit 80ed5c8a15d9a459ee2d260fa0bca5213728453d was wrong.  Too late to revert, so just changed it back.