Drop pydocgui.pyw from the distribution.
Update pydoc topics and fix supsicious markup for 3.4.2 final.
Release bump for 3.4.2 final.
Added tag v3.4.2 for changeset ab2c023a9432
Post-release changes after 3.4.2 final.
Merge from 3.4.2 release head back into 3.4 mainline.
Mostly-null-merge from 3.4 branch following 3.4.2 release.