fix reading of sequences in DICOMDIR files (@hdesouky)
Merge remote-tracking branch 'refs/remotes/origin/master'
ability to render single-bit images
fix hash code implementation for private tags
update version number
fix hash code implementation for private tags
store hashcode to prevent repeated calculations
logging abstraction layer
final fix for matching private tags
use StringBuilder for consistent line endings
fix DicomWriteOptions not being saved in DicomWriter constructor
fix bug setting AT values
fix DicomTags being sorted by private creator
sort by private creator only if element values are equal
update changelog
increment version number
clamp out of range input values to LUT range
fix bug returning default value for zero length elements
DicomDirectory class should not be disposable
move DicomDirectoryReaderObserver to Dicom.Media