- updated to 0.012
* work around Perl core bug [RT#68590] regarding leakage of %^H
into modules being loaded

* work around Perl core bug that made a failed module loading appear
successful when re-requiring the same module

* duplicate is_string() from Params::Classify, rather than importing it,
to avoid circular dependency problems (affecting both installation
and runtime)

* duplicate minimal exporting behaviour from Exporter, and avoid using
the "feature", "warnings", "strict", and "parent" pragmata, to allow
for possible future use of this module by any infrastructure module

* document core bug workarounds

* document module name syntax more prominently, and discuss the state
of Unicode handling

* tweak documentation of use_package_optimistically()

* test behaviour with tainted module name

* test lack of unwanted eval frame around require

* give test modules more meaningful names

* convert .cvsignore to .gitignore