dimensioned 0.7.0

Compile-time dimensional analysis for various unit systems using Rust's type system. Dimensioned aims to build on Rust's safety features by adding unit safety with no runtime cost. In addition, it aims to be as easy to use as possible, hopefully making things easier for you not just by avoiding bugs but also by making it clear what units things are. Never again should you need to specify units in a comment!
Documentation 
# Changelog

This project follows semantic versioning.

### Unpublished

### 0.7.0 (2018-08-12)
- [changed] ***BREAKING*** Made dimensioned work with `no_std` again, and added the default feature
  `std`. Using this without `std` now requires nightly Rust and using `dimensioned` without default
  features. I don't think this will actually break anything, as it was not working before, but is at
  least a break in the intended way to use `dimensioned` without `std`. Once `sqrt`, `powf`, and
  `cbrt` are usable without std on stable, the nightly requirement can be removed.
- [added] Optional dependency on `ClapMe` and implementation for unit systems via `clapme!` macro.
- [added] Trait `Abs` for taking the absolute value of quantities.
- [added] Feature flag `serde` that derives Serialization/Deserialization for unit systems.
- [added] Modules for integer constants to `make_units!` macro.

### 0.6.0 (2017-03-03)
- [changed] ***BREAKING*** Dimensioned has been rewritten from the ground up. It still does the
  same thing but the internals are completely different. Read about it
  [here](http://paholg.com/2017/03/03/dimensioned_0.6/).

### 0.5.0 (2015-12-02)
- [added] This change log!
- [changed] ***BREAKING*** Use typenum instead of peano for faster and more complete type-level
  numbers. ([PR #3](https://github.com/paholg/dimensioned/pull/3))
- [added] Re-export useful things from typenum so that crates downstream don't need to depend on
  it.