Update to 0.011

Upstream changes:
0.011          2020-03-31      T. R. Wyant
    Normalize interpolation before feeding to PPI. This produces a
    more-easily-analyzed PPI parse.

    The ->variables() method is now discouraged. It was written to support
    Perl::Critic::Policy::Variables::ProhibitUnusedVarsStricter, but turned
    out to be inadequate for the job.

    Deprecate new() argument postderef. At this stage it is only
    documented as deprecated. In the first release after October 1 2020
    it will warn on the first use. Eventually it will be retracted, and
    postfix dereferences will always be recognized. This is the default
    behavior now.

    Correct bracket matchers to accept multiple lines. This was, in some
    cases, causing interpolations to be misclassified as unknown tokens.

0.010          2020-03-09      T. R. Wyant
    Remove redundant and poorly-performing code introduced in version
    0.009.

0.009          2020-02-27      T. R. Wyant
    Add new() argument index_locations which causes locations to be
    indexed during the parse. This defaults based on whether a location
    argument was provided, and whether the string being parsed is a
    PPI::Element.

    Add method statement(), which returns the PPI statement containing
    the string element, or nothing if none.

    Add PPI::Element location methods, to wit: location(),
    column_number(), line_number(), logical_filename(),
    logical_line_number(), and visual_column_number().

    Add PPIx::QuoteLike::Utils::is_ppi_quotelike_element() which returns
    true if the argument is a PPI::Element of interest to us.

    All objects now have a variables() method inherited from
    PPIx::QuoteLike::Token. This method returns nothing unless
    overridden. It was added to eliminate $elem->can( 'variables' )
    ad-hocery.

    Eliminate redirections in POD URL links

0.008          2019-08-16      T. R. Wyant
    Fix broken POD links, and add test to ensure they stay fixed.

(wen)