Finishing Volt implementation [ci skip]
Removing temporary Volt files [ci skip]
Update validator.zep

"Options", not "Attribute" and "array", not "string"
file_put_contents optimizer and other fixes [ci skip]
Template code for exporting symbols [ci skip]
Exporting symbols from template engines [ci skip]
Merge pull request #1813 from sjinks/patch-1

Update validator.zep