Sfftk-rw

h5py accommomdation

* h5py>3 has dropped py27 support; it now returns strings as bytes
* this release fixes reading of bytes as unicode strings
* also works with py39
* modified h5py version for py35
* version bump: v0.6.7.dev0

Bugfix: saving excluding name, software and details

* merge_annotation method had these fields commented out; fixed
* unit tests updated to check the same
* version bump: v0.6.6.dev0

Bugfix: index collision during append for new objects to lists

* during annotation in `sfftk` new objects e.g. `SFFSoftware` or `SFFExternalReference` objects, are
created with an `id=0`; an exception is raised during addition to the `SFFListType._id_dict` if the ID
already exists;
* fix: a new method `_get_next_id` has been added to `SFFListType` which determines the next best ID
to use to avoid collision; this also works when items with `id=None` are added - a new ID (starting from 1)
is issued to ensure the integrity of `SFFListType._id_dict`
* version bump: v0.6.5.dev0

Bugfix: reading large XML files

* version bump: v0.6.4.dev0

Bugfix: reading of empty bounding box in v0.7.0.dev0 files

* version bump: v0.6.3.dev0