Project versioning

Be able to create and manage snapshots for a given studio project (from studio UI)
When building a project you are prompted if you want to automatically create a snapshot version for that build.
The last 5 auto snapshots are preserved.
An automatic snapshot will be identified by the build timestamp which will be appended to the downloaded JAR name.
If no automatic snapshot is wanted then the downloaded JAR will contain the string SNAPSHOT instead of the build timestamp.

Snapshots for a project are preserved in data/studio/snapshots/

{project_name}

directory using the build timestamp as the directory name.

In Project editor a new tab will be added to list the existing snapshots.
Here you can delete existing snapshots or release a snapshot version to a "named" version.
The release version is defined by a version string like 1.0, 1.1 etc. and by a type which can be for example "release", "archive" etc.

Also you may specify an optional description of the version.