Removed GCode.pm
Removed the Perl bindigns for AvoidCrossingPerimeters, OozePrevention, SpiralVase, Wipe
Changed the std::set of extruder IDs to vector of IDs.
Removed some MSVC compiler warnings, removed obnoxious compiler warnings when compiling the Perl bindings.
Reset the layer height profile when changing a print profile to an incompatible one.
Reset button on the layer height bar.
Fixed an update issue on zooming by a scroll wheel.
Fixed an issue when loading an AMF file: Object names are now retained.
