update the man page

add --no-open from #257
add list of bower commands to pkg
fix some formatting things in the man (some lists were formatted as
code blocks and some args were listed incorrectly)
update the readme on how to update the man page
get rid of whitespace at the end of lines in favor of <br>
update the help summary (w/ coffee)
Merge pull request #329 from jenius/update-manpage

Update manpage