Changes to oil --version.

- Bump the version number to prepare for the next release
- Report OVM vs CPython.  Patch our fork to identify as 'OVM'.
- Report CPython version and the compiler (e.g. GCC)

Also update .gitignore.

.gitignore

@@ -1,5 +1,7 @@
*.swp
*.pyc
.vagrant
_chroot
_tmp
_bin
_build

Python-2.7.13/Lib/platform.py

@@ -1457,7 +1457,9 @@ def python_implementation():
          'PyPy' (Python implementation of Python).

    """
    return _sys_version()[0]
    # PATCH to identify OVM
    return 'OVM'
    #return _sys_version()[0]

def python_version():

bin/oil.py

@@ -171,6 +171,9 @@ def _ShowVersion():
  print('Arch: %s' % platform.machine())
  print('OS: %s' % platform.system())
  print('Platform: %s' % platform.version())
  print('Compiler: %s' % platform.python_compiler())
  print('Interpreter: %s' % platform.python_implementation())
  print('Interpreter version: %s' % platform.python_version())


def OshMain(argv, login_shell):

oil-version.txt

@@ -1,4 +1,4 @@
0.1.0
0.2.alpha1

# The first line of this file is the Oil version, and the rest is ignored.
# It's used at build time for the release tarball, and at runtime for oil