change links for two tools

For the json validator and catalog generator.
Merge pull request #301 from project-open-data/updating-tool-links

change links for two tools
ignore local ruby versioning info
include css with relative URL
add permalink anchors for fields on schema page
adding a clarification to use UTF-8 encoding
json -> JSON
Merge pull request #302 from philipashlock/schema-permalinks

Schema permalinks
Merge pull request #304 from project-open-data/adding-guidance-for-unicode

adding a clarification to use UTF-8 encoding
adding a section to clarify capitalization
Update schema.md
Merge pull request #305 from project-open-data/clarification-that-fields-in-the-schema-are-case-sensitive

Clarification that fields in the schema are case sensitive
adding HUD, VA documents
added HUD and VA, reordered
Create licensing-resources.md

additional resources and some examples of how government has addressed open licensing questions
Update index.md

linked to 5-11 Licensing policies, principles, and resources
Update licensing-resources.md

Licensing Policies, Principles, and Resources - Some examples of how government has addressed open licensing questions
Merge pull request #312 from project-open-data/licensing-resources

Licensing policies, principles, and resources
Fix licensing resources link and page, by adding yaml front-matter to page, and adjust title headers to reflect site layout and formatting
Merge pull request #313 from konklone/fixlicensing

Fix licensing resources page