Build: Bump gh-pages for silent option

Related to #3125
Merge pull request #3191 from nschonni/v4-bump-gh-pages

Build: Bump gh-pages for silent option
Build: Run full build on travis

Fixes #3125
Merge pull request #3194 from nschonni/v4-fix-3125-with-full-build-on-travis

Build: Run full build on travis
Session: change window.confirm to modal dialog