bit-iter

Iterate over the bits set in a word.

A BitIter may be constructed from any integral value.

Example

```rust fn main() { use bit_iter::*;

let x : u32 = 0x10001;

for b in BitIter::from(x) {
    println!("Bit {} is set.", b);
}

} ```

Output:

text Bit 0 is set. Bit 16 is set.