Passing all of the basic functionality tests

Integration with the new journaling metadata has now progressed to the
point where all of the basic functionality tests are passing. This
includes:
- test_format
- test_dirs
- test_files
- test_seek
- test_truncate
- test_interspersed
- test_paths

Some of the fixes:
- Modified move to correctly change entry ids
- Called lfs_commit_move directly from compact, avoiding commit parsing
  logic during a compact
- Opened up commit filters to be passed down from compact for moves
- Added correct drop logic to lfs_dir_delete
- Updated lfs_dir_seek to use ids instead of offsets
- Caught id updates manually where possible (this needs to be fixed)

tests/test_dirs.sh

@@ -329,7 +329,7 @@ tests/test.py << TEST
 TEST
 
 echo "--- Multi-block remove ---"
-tests/test.py -s << TEST
+tests/test.py << TEST
     lfs_mount(&lfs, &cfg) => 0;
     lfs_remove(&lfs, "cactus") => LFS_ERR_NOTEMPTY;