Small typo fixed

Requires instead of Requeres
Merge pull request #204 from SLaks/node-path-fix

Invoke LESS compiler in node.exe directory
Merge pull request #205 from kipusoep/patch-1

Small typo fixed
Start MarkdownContentTypeHandler

Parse Markdown code blocks into
Artifacts and LanguageBlocks to
suppress HTML language service.

Fixes #15, but needs more work.
Add stateful parser class

Includes untested full code block parser
Use Markdown parser

Doesn't actually work
Allow both fence types
Add basic Markdown tests

Caught two bugs so far
Add failing test cases for indented code blocks
Add more failing tests
Rewrite Markdown parser

Use OOP to eliminate duplication.
Does not yet support tabs or lists.
All other tests pass.
Add tests for fenced code blocks

Doesn't handle missing empty lines yet.
Finish fenced code blocks

Allow missing newline after quote
(not quite correct; should count as wrapping newline?)

Fix remaining unit tests
Fix Markdown CTH

ClassificationType != ContentType
Fix blank lines in fenced code blocks
Fix post-blank lines in fenced code blocks
Create separate ProjectionBuffers per language

Enabled embedded language services inside code
blocks.  Fixes #112.

Doesn't work yet.
Include artifact separators

Also allow empty code blocks

This allows the editor to see new inline artifacts as they're typed.
I may revert this and override IsDestructiveChange() instead.
Report destructive changes for all code blocks

Override ArtifactCollection.IsDestructiveChange() to
return true when users type fences or indents.

I need to rewrite all of this logic because
SensitiveFragmentCollection cannot handle
multiple delimitors.

This requires that the parser report code blocks
more aggressively, coming in later commits.
Report empty code lines in fenced code blocks

The editor will now see the empty artifact from
the destructive change and expand it as the user
adds content.