Merge pull request #92 from LaurentGoderre/master

Build: Fixed dist tag name to avoid conflicts with other themes
Updated files for the v4.0.7 maintenance release
Updated the build version to v4.0.8-development
[Print CSS] Set the print CSS for the page header elements.
Use WET core nested layout
Merge pull request #90 from thomasgohard/print-css-page-header

[Print CSS] Set the print CSS for the page header elements.
Merge pull request #93 from LaurentGoderre/optimize-templates

Use WET core nested layout
Build: Prevents pages from being built twice (min and unmin)
Build: Prevents artifacts from feature branches from being pushed to the working examples
Merge pull request #94 from LaurentGoderre/optimize-build

Fix the build timeouts and prevents artifacts from being pushed on feature branches
Updated files for the v4.0.8 maintenance release
Updated the build version to v4.0.9-development
Prepare for v4.0.8+1