Refactoring of parser was done. Fixes parsing headlines within quote and center blocks.
No need buffered lines from now.
Quote and center blocks can include tables.
Proper indentation of code blocks done.
Updates the examples in accordance with the last commit.
Fixes the title for HTML output. Updates the examples.
Code syntax highlight examples updated.
Slight changes.
Simplifies determining the indent of code block.
Merge pull request #40 from vonavi/parser

Parser reviewed; some bugs fixed. (Fixes #31 and #35)