Getting ready for 0.8.0 release

  - simplyfied imports
  - provide basic doc, including examples
  - few fixes here and there in the code
Added tag 0.8.0 for changeset 409e4d348a5e
In applicationentity: propose explicit transfer syntax first. This avoids problems with
ambiguous dictionary entries (e.g. LUT data)
fixed issue with closed connection in DUL and association thread not killed on release in applicationentiry.py
Fixed issue with DIMSE message group length, which was causing problems when talking to DCM4CHEE.
Started to test with CONQUEST and DCM4CHEE servers.
Started to extend logging.
use DicomBytesIO from pydicom version 0.9.8
Application entity: kill association after release or abort
Added explicit garbage collection in main ApplicationEntity loop
bug fix related to DUL in Association object being deleted
Getting ready for 0.8.1 release
Added tag 0.8.1 for changeset 21372f26dd45
Removed all print statements.
Modified logging setup.
Fixed bug in ECHO SCP: Affected SOP class UID was not set. This caused dcm4che2
dcmecho to crash.dcmtk was apparently not affected by this bug.

Fixed bug with AA-4 in FSM
Ajout de Worklist Service Class.
Fixed various issues with sub-items defined in DIMSEParameters.py
On A_ASSOCIATE_AC_PDU the CallingAEName and CalledAEName where inverted.
Modified Debug info.
Added Worklist Manager test and echo test.
Added a bunch of storage SOP classes
Added script that tests the storescu.py example with all peers in the dicom test vm.
storescu.py example runs smoothly for all peers: dcm4chee, conquest, dcmtk, orthanc and pacsone (eval version)

Fixed again issue with DIMSE message group length that was fixed in c8ad713ddedc
but un-fixed (for unknown reason ...) in 249a9eb2be3e.