* Bugfix: %GITHUB%/issues/200
Safer iteration of cell instances and shapes (with
modifications of container during iteration) - in this
case while flattening instances
* Bugfix: %GITHUB%/issues/209
Reader options were grayed out in stream import feature.
* Bugfix: %GITHUB%/issues/207
Basic.TEXT PCell was rounding bias a spacing values to
integer multiples.
* Bugfix: %GITHUB%/issues/203
A segfault was fixed that happend on certain platforms
when closing the application (e.g. CentOS7).
* Bugfix: (RBA/pya) Technologyload was not working
Instead of load, the technology was saved.