Implement DuckDuckGo-like ! (or \\) syntax for IFL

Instead of having to pass lucky=1 as a GET parameter you can now enter
a search term beginning with "!" or "\" to have MetaCPAN return the
first result to you.

E.g. searching for "!Plack" or "\Plack" will redirect you to
/module/Plack.

This is an alternative to pressing Shift+Enter on the site to go to
the first result, but the real value is being able to use
e.g. DuckDuckGo to search for "!cpan !Plack" to go to the first
MetaCPAN result.

See-Also: https://github.com/CPAN-API/metacpan-web/pull/269
fix author.t
fine tune search parameters to make precision.t pass
fix recent.t when there is only one release that day
fix module.t
Updated favicon.ico
update jquery
move toolbar js in extra file
Messy div#search-bar on Android browsers, fixes #680
Dependencies could mention when 'dynamic_config' is true, fixes #655, fixes #654
Pod http links don't show correctly, fixes #678
Trade dist.ini for Makefile.PL to simplify installation

borrow some code from the api repo to make dependency installation
as easy as 'cpanm .'
Copy script from api to show unlisted prereqs

Maybe someday this can be a separate dist.
Add unmentioned prereqs to Makefile.PL
Go back to default install/test for travis

now that cpanm is enough
Fix syntax highlighting for adjacent pod blocks

closes gh-698.
Place closing paren from last pod hl change correctly

oops
Correctly highlight dereferenced vars (double sigils)

closes gh-699.
Nicks that weren't indexed already are displayed as nothing, fixes #701
add the coderwall 'endorse' button to the author block

... if the author has a coderwall profile.

Note that my TT-fu is weak. I'm pretty sure there's a better
way to add this part to the template than I did.