net/turses: Update to 0.3.1

• Add future, add explicit versions to RUN_DEPENDS
• Add configparser to a conditional RUN_DEPENDS ( < 3.x)
• Remove TESTS option (test framework takes care of installing dependencies)
• No longer restrict to 2.7 (Supports 3.x), add PKGNAMEPREFIX accordingly
• Enable multiple concurrent Python installation (create unique file names)
• Remove bits adding test command to setup.py patch
• Switch to nose instead of pytest for tests
• Update test target (to invoke nose directly) accordingly
• Add NO_ARCH