supported column tag in latexbuilder
fixed tests for epubbuilder
add @<href> for latexbuilder
add //label op and support \ref in latexbuilder
fix //label and @<href>
add tests of label and href in latexbuilder
add tests of label and href in epubbuilder
merge takahashim's branch. check '//' to decide it is url or not on latexbuilder.rb
do not show any caption if caption words is empty
Merge branch 'master' of http://github.com/kmuto/review
fixed escaping in href
fix to use inline tag in footnote of latexbuilder
hide cover page in navigation and add title page to show
merge takahashim's branch.
Merge branch 'master' of http://github.com/kmuto/review
* bin/review-epubmaker: support posthook.
* doc/sample.yaml: support posthook.
* lib/review/compiler.rb: support //raw.
* lib/review/epubbuilder.rb: support //memo, //tip, //info,
  //planning, //best, //important, //security, //caution,
  //notice, //point, //shoot, and @<tti>.
* lib/review/idgxmlbuilder.rb: move //raw to compiler.rb.
Merge branch 'master' of http://github.com/kmuto/review
fix invalid URL(in namespace)
<br/> should be in block element like <p>
fix media-type and opf:role in OPF file