debian/rules: don't do --with python2, unnecessary

debhelper's python2 stuff is useful for packages using python based buildsystem
and/or that install compiled python bytecode. svtplay-dl uses a simple Make
based build system and the resulting program is not tied to a specific version
of python.
Imported Upstream version 0.9.2014.11.16
Merge tag 'upstream/0.9.2014.11.16'

Upstream version 0.9.2014.11.16
Update changelog for 0.9.2014.11.16-1 release