require lib correctly
Add folder 'data' to gem package.

Signed-off-by: Li Yao <hnkfliyao@gmail.com>
Merge pull request #71 from lastland/lastland

Add folder 'data' to gem package.
Correct block_docs/bug_def test expected output
Add a simple script to compare output with redcarpet
Correct toplevel block tests
Accept weird xml processing instruction behavior
Mark bug where maruku treats all HTML at the beginning of a line as a block of HTML as PENDING
Fix problem referred to in bug_def.md block test.
Fix span specs broken by previous change
Fix bug_def AST
Overhaul link references to match other Markdown implementations and generally work better.
Fix build image in README [no-ci]
Fix a couple list tests
Identify what's broken with the list4 test
Try to correct lists6.md test and mark it as PENDING