dicomtools-0.8.6

This release adds new features to the command-line tools, and fixes some bugs for reading OsiriX databases. Feature-wise, the dicompull tool gained the ability to create directory trees from any attribute values instead just a limited few, dicomtocsv has new options for printing the minimum, maximum, or a list of all values present for an attribute across a series, and the DICOM dictionary has been updated for the 2017d edition of the standard. The bugs fixed for reading OsiriX databases are as follows: dates before 1970 were read incorrectly, all times were off by a few seconds due to a roundoff error, and daylight savings time was incorrectly applied.