company pages for hourofcode.com
preserve url for /events link
reorganize as companies instead of countries
add company_s field to HocSignup2014 form
take company from path, update string for each company
take company from path, update string for each company
Merge branch 'hourofcode' of github.com:code-dot-org/code-dot-org into hourofcode

Conflicts:
	pegasus/helpers/hourofcode_helpers.rb
Update hourofcode_helpers.rb
Delete companies.json
Update config.json
Update hourofcode_helpers.rb
Update config.json
Fixed.
add hoc_company_s to hoc signup form
merging branch hourofcode into staging