Remove simplecov & simplecov-rcov
Update year in LICENSE & README
Make CDN, cfs & themes links https

Instead of protocol-agnostic "//...", which causes problems here and
there.
Remove 'Store' helpers

Exvo-Store is no more.
Make Auth & Budget links SSL-only

i.e. disable the ability to create non-SSL links to Auth and Budget (by
removing the `auth_require_ssl` and `budget_require_ssl` options).
Merge pull request #12 from Exvo/ssl_updates

Remove Store links and SSL-related updates