4.4.4 - maintenance release

General maintenance release.

Features:

• Add experimental plugin generators for adding conditions, orders (graphile/graphile-engine#517)
• readCache can now pass an object to be used as the cache (@garcianavalon, graphile/graphile-engine#479)

Fixes:

• Fixed a 3 year old bug in the introspection query (means correct CRUD mutations are generated for views with triggers) (@rudism, graphile/graphile-engine#508)
• Improved the error message when orderBy is not unique and before/after are attempted (@soutot, graphile/graphile-engine#515)
• Improved error messages for smart comments (graphile/graphile-engine#525)
• Remove sortable/filterable from functions that require args (@mattbretl, graphile/graphile-engine#519)
• Ensure X-GraphQL-Event-Stream is domain relative (@mathroc, #1148)
• Recommend using --init with Docker; turn off progress bars

Chores:

• Updated to latest GraphQL, so @types/graphql is no longer required (@none23, graphile/graphile-engine#511)
• Updated to latest Flow (@none23, graphile/graphile-engine#514)
• Standardise database setup instructions (@ab-pm, graphile/graphile-engine#512, #1145)
• Move from TSLint to ESLint (graphile/graphile-engine#526)