Rename subdir to match purpose bit better.

Author: sobomax

MANIFEST.in

@@ -1,4 +1,4 @@
-include setup/__init__.py setup/RunCTest.py setup/CheckVersion.py
+include build_tools/__init__.py build_tools/RunCTest.py build_tools/CheckVersion.py
 include src/rsth_timeops.h src/rtp.h src/rtp_info.h src/rtpjbuf.h src/rtpsynth.h src/Symbol.map
 include src/winnet.h python/RtpSynth_mod.c
 include README.md

setup/CheckVersion.py build_tools/CheckVersion.pysetup/CheckVersion.py renamed to build_tools/CheckVersion.py

@@ -7,8 +7,8 @@
 from sysconfig import get_platform
 
 from python.env import RSTH_MOD_NAME
-from setup.RunCTest import RunCTest
-from setup.CheckVersion import CheckVersion
+from build_tools.RunCTest import RunCTest
+from build_tools.CheckVersion import CheckVersion
 
 is_win = get_platform().startswith('win')
 is_mac = get_platform().startswith('macosx-')