Added Gradle wrapper and properties file after running $gradle wrapper
init and editing build.gradle
Removing gradle artifacts from repository.

Use gradlew
Added explicit EOL for bash shell script files.
Ignoring Gradle's artifact folder.
Using externalized properties.
Updated to the latest stable version of the Spring Framework.
Using new version to reflect alpha status.
Using externalized property for maven url.
Merge branch 'feature/gradlew' into develop