Update changelog
Update changelog
Bumped to 5.0 in preparation for next release.
Added tag 5.0 for changeset 84d936fd18a9
Bumped to 5.1 in preparation for next release.
Rename script template to use .tmpl extensions.

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rename : setuptools/script template (dev).py => setuptools/script (dev).tmpl
rename : setuptools/script template.py => setuptools/script.tmpl
Bumped to 5.0.1 in preparation for next release.
Added tag 5.0.1 for changeset 871bd7b4326f
Bumped to 5.0.2 in preparation for next release.
Extract embedded function as protected staticmethod.

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extra : rebase_source : 04b4807ccc7bf95d87797716f5d3488d420fa692
Moved filename resolution into _load_template

--HG--
extra : rebase_source : beb6c57dfd500432304518b9d313d1a98e2614b9
Merge template loader refactoring