Add jarkeeper.com badge.

Adds a badge which displays the dependencies status.
Upgrade eastwood plugin to 0.2.0.

Exclude of linter _constant-test_ is necessary because it evaluates the
expanded _html5_ macro defined by _hiccup_ which produces a warning.
Merge pull request #132 from mvitz/jarkeeper-badge

Add jarkeeper.com badge.
Merge pull request #133 from mvitz/eastwood-0.2.0-upgrade

Upgrade eastwood plugin to 0.2.0.
Refactor info page into own namespace.
Refactor too-long page into own namespace.
Add separate namespaces for routes and html layouts.
Only views depends on hiccup now.
Move default layout from common to layout namespace.
Increase usage of routes namespace.
Fix styling and some minor warnings from kibit.