use @toc string instead of undefined title
Merge branch 'master' of https://github.com/yhara/review into yhara-master
merge Yutaka HARA's branch. thanks.
add footnotetext option for review-compile: Closes #21
Use <lead> element for //lead and //read by default, to avoid nested <p> elements.
support caption as optional in //cmd{..} and //emlist{..}
<recipe> uses full width blank instead of tab, because tab breaks a table element.
<td> has xy attribution to point cell location.
<td> has xyh attribution to point cell location and a number
of header lines.
add "graphviz" block notation
rename graphviz to graph & support gnuplot
typo
Builder#graph: add command arg
Builder#graph: add blockdiag command
Builder#graph: add aafigure command
Merge pull request #30 from kdmsnr/graphviz

add Builder#graph to draw graphics with text.
fix typo
doc/format.rdoc: add description about graph
fixed Issue #31
review-epubmaker: support bib
update Changelog