transitive crashes for routes without short name

[landonreed]

This has been somewhat squirrelly (see #24, #51), but transitive is still crashing on missing short names.

Steps to reliably reproduce:
Either visit this url OR (locally):

1. use mass511 config branch
2. ./run.js mass511
3. Visit http://localhost:8080/#/?ui_activeSearch=j2xhm9zq9&ui_activeItinerary=0&fromPlace=Natick%2C%20MA%2C%20USA%3A%3A42.283990000000074%2C-71.34617999999995&toPlace=Boston%2C%20MA%2C%20USA%3A%3A42.35866000000004%2C-71.05673999999993&date=2020-11-03&time=16%3A13&arriveBy=false&mode=WALK%2CBUS%2CRAIL%2CSUBWAY%2CTRAM%2CFERRY&showIntermediateStops=true&maxWalkDistance=1207&optimize=QUICK&walkSpeed=1.34&ignoreRealtimeUpdates=true&companies=&bannedRoutes=&numItineraries=3&otherThanPreferredRoutesPenalty=900&preferredRoutes=
4. transitive throws the following exception:

Uncaught TypeError: this.parent.getName is not a function
    at t.value (label.js:36)
    at t.value (label.js:30)
    at t.value (segmentlabel.js:70)
    at default-renderer.js:117
    at e.exports (_arrayEach.js:15)
    at e.exports (forEach.js:37)
    at t.value (default-renderer.js:116)
    at e.value (transitive.js:162)
    at f.updateBoundsAndRender (index.js:118)
    at f.onDrawLayer (index.js:133)

This appears to be an npe when this.parent.getName is called here:

transitive.js/lib/labeler/label.js

Lines 16 to 18 in e5cfc4e

	initText () {
	return this.parent.getName()
	}

[landonreed]

🎉 This issue has been resolved in version 0.13.4 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀