added freemarker and implemented show csar demo, refs #72
Merge pull request #88 from przytads/72

added freemarker and implemented show csar demo, fixes #72

*    added freemarker into pom.xml
*    implemented short show csar demo
Implemented FileSystem and extended CsarFile by foreign key to the
FileSystem, refs #70
Fixed format errors
Merge pull request #89 from TKosch/70

Implemented FileSystem Hibernate model and extended CsarFile by foreign key for FileSystem, fixes #70
add FileSystemRepo, mod UploadCsarService fix #79 #71
saveToFileSystem returns fileName instead of boolean

CsarFile: moved hashField to FileSystem
renamed fileSystemForeignId

FileSystem: added new field: hash

FileSystemRepository:
inital creation ref #71

UploadCsarService:
now uses hashes and FileSystem
renamed FileSystem to HashedFile
fix mapping bug
Merge pull request #90 from eiselems/79

implemented FileSystemRepository and extended UploadCsarService, fixes #79 #71

saveToFileSystem returns fileName instead of boolean

CsarFile: moved hashField to FileSystem
renamed fileSystemForeignId

FileSystem: added new field: hash

FileSystemRepository:
inital creation ref #71

UploadCsarService:
now uses hashes and FileSystem