added coverage to requirements-test.txt
load proper contract list as defined by querystring
added selenium tests for all/naics toggle and showall url parameter
Merge pull request #208 from jroo/coverage

added coverage to requirements-test.txt
Merge pull request #209 from jroo/all_contracts

Added support for showall=true in vendor detail page
Merge branch 'master' of https://github.com/18F/mirage