allow transparent backslash escaping in title, fixes #143
fix rfc822 filter for Mako
zest.releaser
document date attribute limitations
Preparing release 0.7
Back to development: 0.8
log.exception instead of log.critical to retrieve the actual error
'Template' asset writer to convert any HTML file with the current engine
make hash(None) immutable (set to -1)
multiple static directories has now been deprecated
deprecate Jinja2 and Mako asset filter in favour of generic Template filter
remove ENCODING variable and hard code everything to utf-8

Appendum to #131. Assume that everything -- input and output files -- is
utf-8 encoded. Variable encoding is too error prone. Just use utf-8 and
everything is okay.
remove METASTYLE configuration parameter, related to #127

As proposed [1]

> * `METASTYLE` is currently the way to switch between (YAML front
> matter) and (reST, Markdown, pandoc). Actually, all file formats are
> very different and easy to distuingish. Therefore, I would like to
> remove the `METASTYLE` variable.

[1] http://librelist.com/browser//acrylamid/2013/2/20/review-remove-a-few-configuration-variables/
remove unused imports
don't hide traceback when excepting
set metadata from path, closes #132
BOM_UTF8 is actually the first byte, not the last
update view signature in docstring, #146
tag_cloud[tag] returns a list of entries with that tag, see #146
multi extensions support on static filters, fixes #146