Adds additional microdata

- Adds microdata scoping per note in
https://github.com/codeforamerica/human_services_finder/issues/105#issue
comment-25863602
- Adds contactPoint scope
Adds logic to set Service or GovernmentService type
Adds microdata, styling and links

- Adds category microdata
- Adds kind / org_name links on details view
- Adds styling for details view kind and categories
Groups headers in hgroup on result list

Places h1 and h1 elements in an hgroup in the result list so that the
kind element can be a part of the header.
Fixes error when services don't exist

Checks that services exist before iterating over the categories.
Adds links to categories

Makes categories on detail views links using a route _path helper.
Adds checks for existence of kind property
Adds rspec color output settings

Adds color setting for rspec output to the project.
Moves rails_12factor to production group to suppress output in rspec

rails_12factor includes rails_stdout_logging as a dependency, which
causes verbose logging output to appear when rspec is run. This commit
moves this gem to the production group so verbose logging doesn't
appear when running rspec in development.
Removes unused fixtures

With the move to VCR, fixtures are no longer needed because VCR has its
own cassettes in place.
Moves rspec configuration to readme

Instead of constraining the user to specific style of rspec
configuration, this commit removes color coding configuration from the
spec_helper and instead provides more information on how to configure
rspec output in the readme.
Readme copy changes

Updates text in the readme.
Merge pull request #294 from codeforamerica/rspec-formatting

Rspec formatting
Merge pull request #290 from codeforamerica/microdata

Microdata
Merges `master` and updates test

- Updates kind filter test to visit beginning URL directly to avoid
needing to remove existing kind and area_served filters.