Bump apollo-server-express from 1.3.3 to 1.3.5 - #20

Sourced from apollo-server-express's changelog.

v1.3.5

• apollo-server-adonis: The Content-type of an operation response will now be correctly set to application/json. PR #842 PR #910
• apollo-server-azure-functions: Fix non-functional Azure Functions implementation and update examples in Azure Functions' README.md. PR #753 Issue #684
• Fix TypeError on GET requests with missing query parameter. PR #964
• The typing on the context of GraphQLServerOptions now matches the equivilent type used by graphql-tools. PR #919
• Middleware handlers now used named (rather than anonymous) functions to enable easier identification during debugging/profiling. PR #827
• The npm-check-updates package has been removed as a "dev dependency" which was resulting in an older version of npm being used during testing. PR #959
• The typing on HttpQueryRequest's query attribute now enforces that its object properties' keys be Strings. PR #834
• TypeScript types have been updated via updates to [**types**](https://github.com/types)/node, [**types**](https://github.com/types)/connect, [**types**](https://github.com/types)/koa and [**types**](https://github.com/types)/aws-lambda.

v1.3.4

• Upgrade to apollo-cache-control@0.1.0 and allow you to specify options to it (such as the new defaultMaxAge) by passing cacheControl: {defaultMaxAge: 5} instead of cacheControl: true.

• 9d0e7b6 v1.3.5
• 6cddeaf Update CHANGELOG.md prior to v1.3.5 release.
• cbb2b22 core: fix HttpQueryRequest typing (#834)
• 625bf7b chore(deps): update dependency mocha to v5.1.0 (#908)
• 083a1ee Avoid TypeError when querystring is present, but query missing (#964)
• 0a103ef Stop violating types by returning assertions from Mocha tests. (#972)
• 4cbaf46 Prettier for one change in #919.
• 0b235db chore(deps): update dependency types/aws-lambda to v8 (#961)
• f387a1c Tighter context typing for GraphQLServerOptions (#919)
• f8ca710 Use named arrow functions for all middlewares, including GraphiQL.
• Additional commits viewable in compare view

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