Checked that Python 3.4 contains the same dirs as 3.5.
Fix issue #93 - Tcl doesn't work inside a virtualenv on Windows
Add changelog for #888
Python 3.3.5 still ships with Tcl 8.5, so the Python 3.3 build on Windows failed.  From CPython's log, Tcl 8.6.1 was introduced in Python 3.4.0  But anyway I think relying on CPython version is fragile.
Fix Tcl for Python 3.3-
@yan12125 I don't have time to test it - edited on GitHub, so can you take a look if it at least doesn't break anything?