Merged in marius_stanciu/flatcam_beta/Beta (pull request #242)

- small import problem fixed

FlatCAMPostProc.py

@@ -9,6 +9,7 @@
 from importlib.machinery import SourceFileLoader
 import os
 from abc import ABCMeta, abstractmethod
+import math
 
 # module-root dictionary of postprocessors
 import FlatCAMApp

README.md

@@ -13,6 +13,7 @@ CAD program, and create G-Code for Isolation routing.
 
 - finished the update on the Google translated Spanish translation.
 - updated the new objects icons for Gerber, Geometry and Excellon
+- small import problem fixed
 - RELEASE 8.98
 
 17.10.2019