Added framework for company.  Added database migration for company data.
Added method for adding stock valuation and company data to company database table.
Produced index page for companies.
Improved index page for companies.
Added some more field to the company show pages
Added simplified urls and metadata for companies pages.
Added pagination to the companies index.  Added a helper method to determine a valuation's data completeness.
Added a search button to the companies pages.
Added the companies module to the project.