1.7.0
Drop support for EOL Python <= 2.6, 3.0-3.3
Fix test and add CHANGELOG for #174
Fix py.log import error on Windows due to syslog
pyimport: add support for PY_IGNORE_IMPORTMISMATCH
Fix import in test_error.py
remove py/_test and proxy py.test namespace to the new 'pytest' package (version 2) remove py/_cmdline and command line tools (now in separate 'pytools' package)