Consolidate font stylesheet requests

Each 'font!google' dependency injects a new <link> element referring to
that font's stylesheet. The API supports multiple font-families in a
single request, which consolidates stylesheet requests.

This removes two HTTP requests to Google's font API.
Update README.md

Clean up some formatting issues.
Make bin/start-chronos.bash like bin/chronos-marathon.

It was using outdated options. Also fix some syntax errors.
Merge pull request #145 from mesosphere/fix-start-scripts

Fix bash scripts
[docs] Update readme
[docs] fixing more problems in the readme
Using one serializer/deserializer pair, fixes UI issues
Using one serializer/deserializer pair, fixes UI issues
Merge branch 'master' of github.com:mesosphere/chronos

Conflicts:
	src/main/scala/com/airbnb/scheduler/api/Iso8601JobResource.scala
Allows specifying the zk_hosts with a zk:// prefix
Merge pull request #148 from mesosphere/master

Fixes UI issues that disallowed editing jobs
Accepting more formats for ZK
Fixing a bug in the Serializer that caused the API to break
Merge pull request #149 from mesosphere/master

Accepting more formats for ZK
Fixing a small bug due to the remaining
Merge pull request #150 from mesosphere/master

Fixing a small bug due to the remaining
Removing old mesos jar file
Making sure a task consumes only the resources it needs
Pre-populate job start time with UTC
Merge pull request #140 from mesosphere/single-font-request

Consolidate font stylesheet requests