same time args passed to def() are used
  by other elements of the <%def> tag.
  [ticket:191]

- fix up links, formatting in docs
- remove some repetition in the _compile logic

- changelog

  i.e. "% with x as e:/ % endwith" support.
  Courtesy Ben Trofatter [ticket:147]

  within extra arguments to <%block>, <%def>, i.e.
  <%block name="foo" cache_key="${somekey}">.
  Filters can also be used in this way, i.e.
  <%def name="foo()" filter="myfilter">
  then template.render(myfilter=some_callable)
  [ticket:180]

  system, whereby the usage of Beaker is just the
  default plugin.   Template and TemplateLookup
  now accept a string "cache_impl" parameter which
  refers to the name of a cache plugin, defaulting
  to the name 'beaker'.  New plugins can be
  registered as pkg_resources entrypoints under
  the group "mako.cache", or registered directly
  using mako.cache.register_plugin().  The
  core plugin is the mako.cache.CacheImpl
  class.

- The <%def>, <%block> and <%page> tags now accept
  any argument named "cache_*", and the key
  minus the "cache_" prefix will be passed as keyword
  arguments to the CacheImpl methods.

- Template and TemplateLookup now accept an argument
  cache_args, which refers to a dictionary containing
  cache parameters.  The cache_dir, cache_url, cache_type,
  cache_timeout arguments are deprecated (will probably
  never be removed, however) and can be passed
  now as cache_args={'url':<some url>, 'type':'memcached',
  'timeout':50, 'dir':'/path/to/some/directory'}

  evaluates its contents in-place.
  Can be named or anonymous,
  the named version is intended for inheritance
  layouts where any given section can be
  surrounded by the <%block> tag in order for
  it to become overrideable by inheriting
  templates, without the need to specify a
  top-level <%def> plus explicit call.
  Modified scoping and argument rules as well as a
  more strictly enforced usage scheme make it ideal
  for this purpose without at all replacing most
  other things that defs are still good for.
  Lots of new docs. [ticket:164]

- convert heading copyrights to 2006-2011, reference AUTHORS file

- move Namespace docs inline to attributes on Namespace
- document Cache methods, add to caching.rst
- use functools.partial for partials, part of [ticket:156]

  are considered "undefined", meaning they
  are pulled from the context, has been
  trimmed back to not include variables
  declared inside of expressions (i.e. from
  list comprehensions), as well as
  in the argument list of lambdas.  This
  to better support the strict_undefined
  feature.

doesn't occur on Python 2.7

  such as <%foo:bar x="${...}">, now
  allow multiline Python expressions.

  for the `file` argument, i.e. with ${}.
  The `context` variable, if needed,
  must be referenced explicitly.
  [ticket:141]

- Fixed previously non-covered regular
  expression, such that using a ${} expression
  inside of a tag element that doesn't allow
  them raises a CompileException instead of
  silently failing.

- Python 3 support is added ! See README.py3k
  for installation and testing notes.
  [ticket:119]

- start work on #98

  allows custom decoration functions to wrap
  rendering callables.  Mainly intended for
  custom caching algorithms, not sure what
  other uses there may be (but there may be).
  Examples are in the "filtering" docs.

better support grouping

  to be used in place of sys.exc_info()[2].  html_error_template()
  and text_error_template() accept an optional
  render()-time argument "traceback" which is passed to the
  RichTraceback object.
- lexer tests now rely upon an always-sorted dict repr()

  http://techspot.zzzeek.org/?p=28 has now
  been added as a built in syntax, and is recommended
  as a more modern syntax versus <%call expr="expression">.
  The %call tag itself will always remain,
  with <%namespacename:defname> presenting a more HTML-like
  alternative to calling defs, both plain and
  nested.  Many examples of the new syntax are in the
  "Calling a def with embedded content" section
  of the docs.

using a more portable **exception_kwargs collection
- added "source" member to the dict propigated to Lexer/Compile exceptions
- RichTraceback can access original template source as a unicode object
using either 'source' memebr on Lexer/Compile exception, or 'source'
property on ModuleInfo, fixes #37
- unit tests for #37

during 0.1.4 [ticket:29]

template (keyword arguments only, must be declared in that page's <%page> tag.)

implemented "args" for <%page> tag.  still has a default
"**_extra_pageargs" catchall for now...