packages.json schema 2.0
Added AZJIO IncludeHelper
official tmlanguage from 33917 beta
remove comments-start from directives, make comments-start case-insensitive, move include-once to directives
update readme with installation instructions
Merge pull request #1 from robertcollier4/master

Bring package up-to-date with official tmlanguage included with 33917 beta and other repo