Improvements MooseFS

Enhanced Error Handling:

- Added logging system with Log::Log4perl
- Retry mechanism with exponential backoff for mounting
- Configuration parameter validation
- More detailed error messages

New Features:

- Support for "goal" parameter to configure replication level
- Storage statistics (used space, replication status)
- Cache size configuration
- In-transit encryption support

Performance and Robustness:

- Configurable mount timeout
- Mount status verification
- Performance statistics collection and monitoring

Configuration:

- New properties to control plugin behavior
- Configuration value validation
- Support for advanced parameters (cache, encryption)