Fixed a compiler warning in gcodeExport.h
added some wildchars to ignore
Removed some trailing whitespace in Makefile
ran dos2unix on gcodeExport.h
Set default output for GCodeExport to be stdout
ignore CuraEngine binary
made fprintf log to stderr

Made all fprintf's output to stderr so that you can easily slice a file to stdout and capture the output or push it to a pipe.  This is all for a revamp I'm doing of the unittests
Un-ingored gcode files

The unittests will be checking that gcode is output correctly, so we'll need references
Updated the unittests to check the actual output

I updated the unittests so that the output gcode matches what's expected.  Of course this all matches right now, but this means the engine can be moddified and tested accordingly.
Merge pull request #25 from grimmy/master

Random cleanups