Tangled

==================

- Make `converters.as_seq_of_seq()` return a converter (it no longer directly
takes a value to convert). This makes it consistent with the other sequence
converters.
- Add `tangled.settings.check_required()` to the public API to indicate that
settings tools/parsers can use it.
- Remove `processors` arg from `settings.parse_settings()`. It didn't serve any
purpose, and its presence was confusing.
- Remove custom bdist_egg command that ensured "missing" `__init__.py` files
weren't added. It's no longer needed since setuptools 3+ no longer does
this.
- Bug fix: Add missing `settings` arg to `check_required()` call in
`settings.parse_settings_file()`.
- Reenable running doctests by default when running nosetests.
- Upgrade nose from 1.3.0 to 1.3.1
- Upgrade Sphinx from 1.2.1 to 1.2.2

==================

- Fix/improve package metadata.
- Add workaround for setuptools "helpfully" adding __init__.py to
tangled namespace.

==================

- Allow .py files in scaffolds to have a .template suffix. This is necessary
for .py files that use `${var}`s that aren't inside strings. Otherwise, those
files will cause a `SyntaxError` when the package containing the scaffold is
installed.

==================

- Add `tangled python` command
- Add -y flag to `tangled release` command (assume answer to all prompts is
yes)
- Don't offer to push tags in `tangled release`; pushing stuff is outside the
scope of this tool.

==================

- Really fix packaging issues

==================

- Fix packaging issues