A flexible logger that can write to stderr or to log files
See http://emabee.atwebpages.com/rust/flexi_logger/index.html
Add this to your Cargo.toml
:
toml
[dependencies]
flexi_logger = "0.3"
log = "*"
and this to your crate root:
```rust
extern crate log; extern crate flexi_logger; ```