Merge pull request restlet#1090 from quilicicf/bugathon_3862_NPE_swag…

…ger2

Fix NPE when input payload has null type and collection true (restlet…

Fix NPE when input payload has null type and collection true (restlet…

…/apispark#3862)

Fix NPE in SwaggerWriter#getApiDeclaration

Bump version to 3.9.0

Bump version to 3.8.7

Bump version to 3.8.6

Released Restlet Framework 2.3.2.

Bump version to 3.8.5

Bump version to 3.8.3

Bump version to 3.8.2