Updated dependencies and fixed Tokio runtime incompatibilities

fixed dependencies and tokio runtime compat (#11)

* fixed dependencies

* version bump

* version bump

* fixed tokio mismatch

* Cleanup

* updated clap code

* updated README

Renamed metric to folder_size_bytes

0.4.1

Changed metric to folder_size_bytes (#9)

Support for asynchronous folder size calculation

This version adds the support for asynchronous folder size calculation. This is useful if the standard, blocking calculation takes too long (because perhaps the storage is slow or the number of folders too big).

Just specify the -b option with the number of seconds between calculations.

Note: the first calculation will always be synchronous in order to avoid returning invalid data.

Support for reclusively explode folders

0.3.0

Update README.md

Added optional User label

• Added user label. Thank you scatenag for your first PR (#1)!

Initial release

0.1.0

Fixed versions on Cargo.toml