Graphql update

[evansiroky]

• update to latest gtfs-lib with graphQL update
• make the GraphQLController similar to other controllers
• add more jmeter tests for common graphQL queries
• Fix an error in FetchSingleFeedJob.java
• Make response logging faster by not fully parsing large responses

[evansiroky]

This PR depends on the changes in conveyal/gtfs-lib#144. A new release of gtfs-lib will need to be created in order for this PR to work out-of-the-box.

[codecov-io]

Codecov Report

Merging #118 into dev will decrease coverage by <.01%.
The diff coverage is 37.5%.

@@            Coverage Diff             @@
##               dev    #118      +/-   ##
==========================================
- Coverage     5.15%   5.15%   -0.01%     
  Complexity      93      93              
==========================================
  Files          133     133              
  Lines         6865    6872       +7     
  Branches       900     903       +3     
==========================================
  Hits           354     354              
- Misses        6485    6490       +5     
- Partials        26      28       +2

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/com/conveyal/gtfs/GraphQLMain.java	0% <0%> (-47.37%)	0 <0> (-2)
...om/conveyal/datatools/common/utils/SparkUtils.java	29.67% <0%> (-2.1%)	9 <0> (ø)
...va/com/conveyal/datatools/manager/DataManager.java	59.34% <100%> (ø)	30 <0> (ø)	⬇️
...main/java/com/conveyal/gtfs/GraphQLController.java	20.93% <57.14%> (+20.93%)	2 <1> (+2)	⬆️

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[evansiroky]

This PR is now ready for review as it no longer depends on conveyal/gtfs-lib#144.

[landonreed]

LGTM, thanks @evansiroky. I have become increasingly skeptical of the wisdom of logging requests/responses within the application, but I think we should address that outside of this PR.