Minor changes to avoid Visual C++ 2012 warnings.
Merge branch 'master' of https://github.com/ideras/pcb-probe.git

Conflicts:
	src/pcb-probe.cpp
Removed intermediate file generation. It was for debugging purposes.
Added "Grid Size" command line parameter, also support for Inches and MM.
Revert this changes, to undo some mess up on May 19, 2013

This reverts commit aea33fce0392e0d872ae62acbb22f74f7e512dd3.
Undoing some mess-up on May 19, 2013

This reverts commit 6cc743e72b00ef6bd95f3b2fa73e11abb19774f0.
Undoing a mess-up on May 19, 2013

This reverts commit aea33fce0392e0d872ae62acbb22f74f7e512dd3.

Conflicts:
	src/main.cpp
	src/pcb-probe.cpp