Remove empty header lines
Merge pull request #38 from kaosf/remove-empty-header-lines

Remove empty header lines
Ignore YARD files and directories
contact info.
Merge pull request #39 from kaosf/ignore-yard-items

Ignore YARD files and directories
add preview link on detail page
reject update at concurrent access
hide view_site link unless public
fix:contact info.
fix:contact search