untagged-32d9ab24829f3f33731d: PYCBC-628: Produce ManyLinux builds

Only build 3.5-9

Explicit version list

Use regex to validate extant Pythons
More detailed info on LCB_VERSION found
Do auditwheel

Change-Id: I3e84b00bb05942ca9449f188e06782fc5fb4af04