PrusaSlicer v2-fork edition

merged against prusaslicer {2f806de} (2019/06/25 version)

new

• nothing

bugfixes

• #69 #68 #62
• fix bug where bridge aren't created in special circumstances
• fix bbug where denser infill algo selection wasn't in-sync
• add some tests about denser infill
• sanitize some profiles values.

known issue

• i forgot to add the msvcp140.dll alongside msvcp120.dll. You have to install the visual studio 2017 c++ redistribuable. available here
• ironing can be a bit out-of order, not recommended