databasebackup - clearing up code, removing Collections helpers
databasebackup - code clean up
dbbackup - mark Command classes as having package access.
dbbackup - code clean up
POULPE-503 Added META-INF/validation/users-mapping.xml for ignoring Lenght annotation in User class,
 but this xml file was not available in validation.xml.
Merge branch 'master' of github.com:jtalks-org/poulpe
Merge branch 'master' of https://github.com/jtalks-org/poulpe.git
#POULPE-469 Testcoverage and refactoring for Database backup
functionality - remove RS.close() and change Exception from general
SQLException to a MetaDataAccessException one
#POULPE-486 Impossible to create DB backup in Poulpe on preprod - get
rid of caching in DbTable class
#POULPE-469 Testcoverage and refactoring for Database backup
functionality - code cleanup
#POULPE-486 Impossible to create DB backup in Poulpe on preprod - fix
Changed mappings for the PROPERTIES table
Changed Common version to 0.51
POULPE-507 Merge with master.
POULPE-507 Merge with master.