Switch Makefile to run on Linux
Revert "Switch Makefile to run on Linux"

This reverts commit 9ddeba983149d9ce094424cc71f8c0751f39ce82.
Fix remote source in makefile
Fix file extensions for sphinx
Clean up folders after gh-build
Allow build superfluous error
Add build script
Fix typo
Fix make invocation
Fix copytree handling
Another shutil tweak
Remove Makefile in favor of build.py script
Merge pull request #127 from blink1073/master

Switch from Makefile to build.py, plus fix some image extensions for Documentation build