backup projects

[bs-jokri]

From @heydenreich on December 2, 2016 12:55

backup projects as work in progress
Works:

• UI has buttons to download a project backup for a specific project as zip and to re-import such a zip file
• the project and its linked projects, linked releases (also of the linked projects and releases), components, vendors are included in the backup if visible to user
• import everything that does not exist in db yet
• for everything that is already in the database: generate a moderation request if user has writing permission (so that he can decide explicitly on the changes), but ignore if user has no writing permission

Todos:
see #637 and #638 + fix the test testImportProjectBackup() in ProjectBackupHandlerTest.java

Copied from original issue: bsinno/sw360/pull/362

[bs-jokri]

Is pull request that is not on upstream yet