[VOL-5000] VOL-5001 - edits for debugging voltha-prototype problems.
Makefile
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o Disable DISTUTILS_DEBUG, only needed when tracing pip install failure.
o Added comments and minor cleanups.
o Added enter/leave banners for targets.
o Display PROTO_FILES macro to see where the bash -c syntax error problem originated.
o ls /go/src and java_temp/ to show permissions (local docker issue).
o Sterile target updated to remove java_temp and addeed
mkdir helper logic to continue building locally.
tox.ini
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o Community reported people are no longer using python protos so
begin cleanup by removing old interpreters.
Change-Id: Ia7ae20bb409c9ccfdc2e87fb07491a143eae56da
3 files changed