message: Clean up imports in analyzer.
diff: import * as dom5 from 'dom5';
  import {ParsedHtmlDocument, Severity, Warning} from 'polymer-analyzer';
  -import stripIndent = require('strip-indent');
  +import {registry} from '../registry';
  import {stripWhitespace} from '../util';
  +
  import {HtmlRule} from './rule';
  -import {registry} from '../registry';
  +
  +import stripIndent = require('strip-indent');
  +
  const p = dom5.predicates;
  