Resolved Group Descriptor Bug
- Groups began reading at the wrong offset, this is now corrected.
- Added missing 'pad' field to GroupDescriptorEntry
- Updated GroupDescriptorEntry printing to style similar to dumpe2fs
- Updated GroupDescriptorTable printing to style similar to dumpe2fs
Bug fixes and optimizations
- Cleaned up DirectoryEntry to better handle original inode type (missing filetype descriptor)
- DirectoryEntry now properly identifies unknown files as such for original ext2 format
- Fixed bug in GroupDescriptor incorrectly numbering the block ranges due to assuming the block group start was always at block 1.
- Updated SuperBlock to properly read bit flags for EXT features.
- Added helper method to Utility for reading bit flags
- Added helper method to Utility for reading unsigned short values as Integers for compatibility

* Changes tested against ext2 and ext3 partitions at 100MB and 2GB partition sizes.
Merge pull request #3 from ToxicBakery/master

Resolved Group Descriptor Bug