Better clipping of honeycomb paths
Some Clipper optimizations
Use linestring_length() from Boost
Merge pull request #1085 from fehknt/master

fix for issue 1076
Bugfix: crash introduced by wipe
Don't wipe if option is disabled
Bugfix: configuration wizard led to crash with simple mode. #1077
Second layer commands were written multiple times
Merge branch 'master' of github.com:alexrj/Slic3r
Bugfix: time estimates for cooling were computed for each object separately instead of the whole actual layer. #1071
Allow 0.1mm slots. #959 #1056
Small optimization on an incredibly hot codepath.
Inline comparable_distance_between_points

It was called on an incredibly hot codepath from a single place. At 12313276 calls
on my test .stl, the sub call overhead alone was a significant perf hit.
Only look up $point's X and Y once, rather than once on every pass through the loop.
(Those lookups are expensive)
no functional change. only return from one place for clarity
split apart the math in nearest_point_index and short-circuit if we know the candidate is no good
Merge pull request #1107 from obra/nearest_point_index_perf_part_2

Nearest point index perf work part 2
Always move Z at travel speed. #1093
Remove debugging statements
Require Boost::Geometry::Utils 0.08