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Version bump for release.
Version bump post-release.
Removes code duplication in aspen.utils.to_rfc822

The logic used in to_rfc822 also exists in the standard library
module email.utils. As RFC 2822 is an email specification, this
seems to be the logical place to centralize the logic. Further,
email.utils has no dependencies outside the standard library.

I've imported email.utils as email_utils to avoid possible
confusion between the name of this module (utils) and the imported
module, without incurring the overhead of importing the entire
email module.
Updates tests to better comply with RFC 822

RFC 0822 (http://www.ietf.org/rfc/rfc0822.txt), page 26, requires
that a numerically-defined GMT offset begin with a - or +, but does
not specify which much be used for an offset of zero. As such, I've
updated the tests to allow either sign to be used where we test for
the presence of zero offset.
Merge pull request #107 from lyndsysimon/issue-106

Issue 106
Refactor trailing-slash redirects so they can be applied in multiple appropriate places
fix issue #81 - make project_root relative to cwd, not www_root
Merge pull request #110 from pjz/issue81

fix issue #81 - make project_root relative to cwd, not www_root
Version bump for release.
Version bump post-release.
Change dev version indicator from + to -dev (#109)
Version bump for release.
Fix regression in release script (#109)

printf "-dev" was seeing -d as an option
Version bump for release.
Version bump for release.
Fix more regressions using printf/echo (#109)
Version bump for release.
Version bump post-release.
Fix test suite for #81 / #110 / #111