Add more excluded filetypes from sitemapper
Add regexs for strip mappings
Merge pull request #703 from rjc123/master

Some tool amendments
Modify shift site utility to clean popular test files
Merge pull request #706 from rjc123/admin

Modify shift site utility to clean popular test files
Transition non-asset, non-rule businesslink sites to transition tool

Conflicts:
	data/tests/popular.csv
Merge pull request #708 from rjc123/businesslink_site_shift

Transition non-asset, non-rule businesslink sites to transition tool
Configure directgov archived campaigns on transition
Configure directgov redirected campaigns on transition
Remove directgov_subdomain configuration
Remove popular tests relevant to directgov subdomains shift