removed sftp blobstore and started creating the ArchiveService
added retrieve from archive method impl
finished Filesystem ArchiveService impl
added controller and refactored services
added archive test
fixed archiving on FileSystem
fixed fs-it/performance-it properties
added Controller for archive and fixed the FileSystemArchiveService to pass all tests
implemented sftp archive service and added tests
removed archive dir
added index for archives and correpsonding service
Merge pull request #8 from escidoc-ng/archive-service

merged to implement Archive feature
removed archive path from repo and fixed archive path so it will be in the target directory
allow user-role with write_level2 to assign user_role for his level to
other users
write metadata as json to be able to search for fields
add possibility to index metadata in own index
Merge pull request #9 from escidoc-ng/metadatasearch

Metadatasearch
implemented archive list method at /archive/list/{offset}/{count}
Merge branch 'master' of https://github.com/escidoc-ng/escidoc-ng
implement status-changes
fix tests