Replaced point saving assets for more flexibility

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | no
| License       | MIT
This commit will expand work with assets. 
For example transparent adding compressed file versions will be easy to implement.
Do I need to make another pr for 2.1,2.2,2.3 and master branches?