* Centralize file reading
Be able to tell the difference between static files and templates
Check other places for static_file?
Allow pipelines to still operate on js/css
chmod after moving
* Fix check on frontmatter parsing
* Reuse var
* Fix mime check
* Handle non-file resources with static check
* Fix .php files and minification
In v3-stable branch, builded text file's permission are 0644.
But in master(v4) branch, file's permission are 0600.
When I deploy(drug-and-drop with sftp), the website isn't displayed. So
I fixed this problem.