ReportBuilder is invoked by client
Conflicts:
	src/client.js
	test/unit/client_test.coffee
Use single write-through processor
Filter error reports
Conflicts:
	src/client.js
XhrReporter constructor takes no `name` parameter
HybridReporter detects CORS, defaults to XHR
fallback examples use Airbrake.wrap
Don't throw error on `push`
Remove specialty filter-related API points
Merge remote-tracking branch 'canonical/master'

Conflicts:
	src/reporters/xhr_reporter.js