Bugfix: when processing with fill_density = 0, top/bottom solid shells were missing regions thinner than 3 * extrusion width. Includes regression test. #1602
Perform additional checks before merging solid surfaces (i.e. take flow and fill pattern into account)
Better implementation of previous commit (7ce49fc2b28bcfd7d455f43e431987a380fae3c4)
Bugfix: crashing when concentric infill produced very narrow loops. #1740
Regression test and incomplete fix for bug affecting wrong spiral vase output. #1773
Fixed spiral vase regressions. Includes regression tests. #1773
Merge pull request #1 from alexrj/stable

Merging bugfixes from main repository