Merge pull request #95 from repetier/master

Multi-Stl-load, codeblocks support, autocenter, bug fixes
Some minor cleanup after #95
Some minor cleanup after #95
Add simple mode which does hardly anything, but has nice use for some artists.
Add missing stdio.h for usage of filestream functions

Signed-off-by: Olliver Schinagl <o.schinagl@ultimaker.com>
Remove \r from CuraEngine

CuraEngine uses newline's, not carriage return's. This patch strips \r's
from the source files. No code changes where performed.

Signed-off-by: Olliver Schinagl <o.schinagl@ultimaker.com>
Merge pull request #96 from oliv3r/master

Carriage return cleanups from CuraEngine
Fix the bug introduced into the concentric infill in #90
Some fixes for the SimpleMode.
Optimize line segment order a bit so it favors going more in a straight line.
Fix multi-object slicing in cura.
Add pre/post extruder switch gcode templates. Add ZHop to extruder switch retraction. Fixed #99
Add missing code for the pre/post extruder swap codes.