* Adds Valid annotation for request body (#4847)
If useBeanValidation is active, this change will add Valid annotation to ReqeustBody
* Adds generated samples for bean vaildation in spring boot (#4847)
* Adds feature option (#3819)
When you enable the feature useOptional the JavaSpring generator will use type Optional for non required parameters.
* Adds generated sample for #3819
* Adds generated sample for #3819
* Reverts commit for bean validation
* Adds generated sample for #3819
* Reverts commit for bean validation
* Fix alignment
* update spring samples
* update pom.xml to include spring use optional samples
* update artifactId to "spring-boot-beanvalidation"
* rpelace tab with 4-space
* check mvn task result
* enable travis CI tests for swift, objc, move some tests to circleci
* fix comment in xml file
* use xcode8.3
* use ruby 2.2.5
* fix objc core data pom.xml
* use cocoapods 1.2.1
* use xcpretty for clearer test results
* fix pom with relative path to script
* comment out objc test
* fix xcpretty exit code
* add && exit ${PIPESTATUS[0]} for swift3 xcodebuild script
* use xcode 8.2
* update promisekit version for swift 2x, 3x
* add pod repo update
* remove Pods directory
* update swift dependencies to the latest version
* update podfile.lock
* rollback Alamofire to 4.0 for swift3
* fix swift3 rxswift api cliiet
* fix testDeletePet test in Swift3 rxswift petstore
* update clojure petstore
* comment out clojure test in travis (already covered in circleci)
* run pestore server locally
* use wing328/swagger-samples to run petstore
* run petstore server in the background
* test ruby petstore client
* add /Users/travis/.cocoapods/repos/master to cache
* add back ruby test, use public pestore server
* add back bash client test
* add npm config set registry to avoid time out
* use docker branch in swagger samples
* remove bash test
* show go version, reorder
* debug go petstore client
* reinstall go
* comment out pod repo update
* uncomment pod repo update
* test go in circleci
* remove go from travis test
* brew install sbt
* add codeship yml
* rename ci config
* show rvm version
* use ruby-2.1.0
* check ruby version
* use rvm default
* fix host name
* set node version
* test mvn clean install
* use -q for mvn
* set memory limit
* add export MAVEN_OPTS="-Xmx512m -XX:MaxPermSize=128m"
* run test only
* update MaxPermSize to 256mb
* run mvn verify
* remove -q
* add comment
* add more comment
* restore ruby model order
