Update to 2.91 and call it 2.9.1 because previous was 2.9 and I don't trust
perl module version numbers :)

Changes:
2.91 Fri Mar 30 2012

  - Feature: RT #18901 - Added new utf8 option to make it really simple
    to use UTF-8 encoded templates [Michael Peters]

  - Feature: RT #30586 - Added new open_mode option to allow for
    Perl IO layers to interact when using open() on the template files
    [moritz@faui2k3.org and Michael Peters]

  - Feature: RT #38189 - Allow clean XML style tags "<tmpl_var foo />"
    to be used as well. [allard@byte.nl]

  - Feature: RT #46285 - Added support for lazily-evaluated coderefs
    for TMPL_LOOPs. [Justin DeVuyst and Michael Peters]

  - Feature: RT #64797 - Added new option die_on_missing_include (defaults
    to true) that allows users to turn off the behavior of dieing when an
    include can't be found [Zdenek Styblik and Michael Peters]

  - Feature: Add new cache_lazy_vars option so that the values from coderefs
    used for TMPL_VARs can be cached and the coderef not run multiple times
    [Michael Peters]

  - Feature: Add new cache_lazy_loops option so that the values from coderefs
    used for TMPL_LOOPs can be cached and the coderef not run multiple times
    [Michael Peters]

  - Feature: Added __even__, __outer__ and __index__ loop context vars.
    [Michael Peters]

  - Bug Fix: RT #26456 - force_untaint can't work in Perl < 5.8.0
    [admin@photoresearchers.com]

  - Bug Fix: RT #67663 - remove warning under Perl > 5.14.0 about using tied
    with a file handle without "*" [RENEEB, TODDR and Michael Peters]

  - Bug Fix: RT #35534 - Using the same loop multiple times with
    different vars will no longer cause an error if die_on_bad_params
    is set. [Ron Savage & Michael Peters]

  - Bug Fix: RT #38325 - Give a better error message if param() is set
    with a reference to a reference. [Mark Stosberg & Michael Peters]

  - Test Fix: RT #26103 - t/05-blind-cache.t no longer modifies the
    distribution during the tests but instead uses temp files [Jan
    Dubois and Michael Peters]

  - Test Fix: Tests that create and modify files now use temp files
    and file_cache_dir is always a temp directory [Michael Peters]

  - Doc Fix: Using more POD formatting [Michael Peters]

  - Doc Fix: RT #46244 - fix broken link to tutorial [Michael Peters]

  - Doc Fix: RT #60282 - fix various mispellings [Florian Ernst]

  - Doc Fix: RT #60283 - fix broken HTML example [Florian Ernst]

  - Doc Fix: RT #60284 - fix broken POD [Florian Ernst and Michael Peters]

  - Development: Moved development to GitHub
    (https://github.com/mpeters/html-template)

  - Development: Switched to using Dist::Zilla internally for release management

  - Development: Added Michael Peters as co-maintainer

(wiz)