Log Message:
p5-Devel-Cover: update to 1.27.

Release 1.27 - 20 September 2017
 - Test against 5.27.3
 - Add dependency on B::Debug (Ryan Voots) (github 189)
 - Remove obsolete dev and cpancover code
 - Manage multiple ignore and select options (Sullivan Beck) (github 163)
 - Write top-level html last for better sorting (Christian Walde) (github 158)
 - Restore XS coverage in cpancover (H.Merijn Brand) (github 188)
 - Allow cpancover to run fully from local directory
 - Handle missing start times in runs (Chad Granum) (github 190)
 - Add test for string eval (Sebastian Paaske Tørholm) (github 145)
 - Improve uncoverable tests and docs (Kevin Brannen) (github 167)
 - The cover program accepts multiple reports (Eden Hochbaum) (github 172)
 - Add -prefer_lib option to cover script (Kent Fredric) (github 91)
 - Fix low-level file locking (Graham Knop) (github 90)