LDCad 1.7 Alpha 2a (win+linux)

[Milan Vančura]

Besides bug fixes I've also added 2 new minor features to the part bin:
- Hiding of zero count items during count down mode is now optional.
- Negative searching using the '!' character, eg: "1x1 !round" to get all 1x1 parts except the round ones.

Thank you, Roland. Both the part countdown and 'not' operator in searches are great help for me. Part countdown is superb for alternative models making and similar tasks, the 'not' operator helps with searching, a lot.

My quick check: some parts miss their understud(s) in shadow library. For example the cheese slope 1x1 (54200) although I have the latest shadow.cf - am I doing anything wrong, please? Or are they really missing and it would be helpful if I send my findings?