Reinstate query (non-batch, non-paging) tests. Got removed by mistake.
Merge branch 'master' of github.com:rocky/solvebio-ruby into HEAD

Conflicts:
	test/test-query.rb
Merge branch 'master' of github.com:rocky/solvebio-ruby into HEAD
SolveBio::Client.client.api_key -> SolveBio.api_key. Add rake task to run all demos
Query total method can be picked up in a super-class PageQuery total method