normalizeEntityName should be able to modify the entity name.
Merge pull request #1283 from rjackson/normalize-entityname-should-change-name

Blueprint.prototype.normalizeEntityName should be able to modify the entity name.
move QUnit assets into test-vendor.js and test-vendor.css. Add type option to import to specify which that it's a test asset
remove deprecation warning
use _processedVendorTree() instead of hardcoded 'vendor'
add change log entry. Use populateLegacyFiles to populate test files