3.1.0

Includes a bug fix for the plugins from the initial 3.0.0 release and includes some refactoring and new features we can use now that we depend on graphql-java 15

Minor Changes

• Port graphql-java 15 subscription changes to Flow strategy (#742) @josephlbarnett

Patch Changes

• Replace regex with printer option (#743) @smyrick
• [plugins] fix GraphQLClientGenerator findRootType bug (#740) @benimario

Non-version Changes

• [docs] fix copy+paste error on downloadSDL task (#744) @dariuszkuc
• [docs] update interfaces documentation (#741) @dariuszkuc
• [docs] fix client configuration (#739) @dariuszkuc