Cosmetic change in regexps.
Support of HTML source blocks.
Skip blocks of unsupported type.
Skip a HTML code block for non-HTML output.
Transfers @<text> into <text> for HTML output.
Switches the formatting of image links to default Org-mode behavior.
Updates the examples in accordance with the last commit.
Fixes regexps for preparing links.
Slight modifies headline attributes.
Merge pull request #42 from vonavi/html_block

Support of HTML source block added.