Jython 2.7.5b1

Jython 2.7.4 final

Jython 2.7.4rc1

Jython 2.7.4b2

Jython 2.7.4b1

Jython 2.7.3

Jython 2.7.3rc1

Jython 2.7.3b1

Prepare for 2.7.2 final release.

Prepare for 2.7.2rc1 release.

Update version numbers. Add jffi-dll-droppings to .hgignore so as to avoid
complaints from the build after test.