Return error when unable to create a file path from url.
Run build-cef last so that tests don't cause a rebuild.
Merge pull request #3284 from glennw/file-loader-fix

Return error when unable to create a file path from url.
Merge pull request #3285 from metajack/reseq-travis

Run build-cef last so that tests don't cause a rebuild.
remove unnecessary proc from resource loader factory
create about_loader, handle about:blank
Add -v or --verbose to mach build
Merge pull request #3291 from EdorianDark/master

Add -v or --verbose to mach build
Merge pull request #3216 from seanmonstar/about-blank

Implements about:blank in an about_loader