Log Message:
Updated p5-Template-Toolkit to 2.27.

#-----------------------------------------------------------------------
# Version 2.27 - 13th December 2016
#------------------------------------------------------------------------

* Ghost fixed the regex in the uri/url filters, removing double quotes
  to make it RFC3986 compliant.
  https://github.com/abw/Template2/issues/35

* Sean Zellmer added testrules.yml to always run compile*.t sequentially
  https://github.com/abw/Template2/pull/45

* Simon Dawson added 'empty' vmethods for scalar, list and hash
  https://github.com/abw/Template2/pull/46

* Dennis Clark added --envvars option to tpage
  https://github.com/abw/Template2/pull/49

* Yanick Champoux made Template::Toolkit a module
  https://github.com/abw/Template2/pull/51

* Various warnings silenced and typos fixed.