bpo-32802: Travis does not compile Python if there is one change in t…

…he documentation

Fix the detection of the modified files in Travis

Tag v3.6.1

Tag v3.6.1rc1

Version bump for Python 3.5.3.

Version bump for Python 3.4.6.

Version bump for 3.5.3rc1.

Version bump for 3.4.6rc1.

Update docs and patchlevel for 3.6.0 final.

2.7.13 final bump

Version bump for 3.6.0rc2