Revert 0a8d380..4795655

This rolls back to commit 0a8d3800acf2978445ad96e74f8deaad984e3f0d.
Supporting directory path for source / destination to minify

Current support of htmlmin is one-one file minification.

User can’t able to give directory as source & and point to a directory
as destination to minify all the files from source to destination