Rename contains matcher

[povilasb]

Addresses #45
As discussed this PR

• adds contains_all_of
• deprecates contains
• adds an alias contain_all_of so that does_not(contain_all_of()) reads nice

Then, I guess, in the next future PR I'll make changes to contains/contain matchers to test only if a single element is in the list.

[povilasb]

mmm, doc-tests are failing:

---- src/matchers/vecs.rs - matchers::vecs::contains_all_of (line 130) stdout ----
        error: cannot find macro `assert_that!` in this scope
 --> src/matchers/vecs.rs:8:1
  |
8 | assert_that!(&vec![1, 2, 3], does_not(contain_all_of(vec![1, 2, 4])));
  | ^^^^^^^^^^^

error: cannot find macro `assert_that!` in this scope
 --> src/matchers/vecs.rs:7:1
  |
7 | assert_that!(&vec![1, 2, 3, 4], contains_all_of(vec![1, 2, 3]));
  | ^^^^^^^^^^^

error: aborting due to 2 previous errors

not sure how to fix that yet :/

It fails to locate assert_that! macro:

/// Creates a matcher that checks if actual vector has all items of the given vector.
///
/// # Examples
///
/// ```
/// #[macro_use]
/// use hamcrest::prelude::*;
///
/// assert_that!(&vec![1, 2, 3, 4], contains_all_of(vec![1, 2, 3]));
/// assert_that!(&vec![1, 2, 3], does_not(contain_all_of(vec![1, 2, 4])));
/// ```

any ideas?

[povilasb]

Fixed it, but example looks verbose right now:

/// Creates a matcher that checks if actual vector has all items of the given vector.
///
/// # Examples
///
/// ```
/// #[macro_use] extern crate hamcrest;
/// use hamcrest::prelude::*;
///
/// fn main() {
///     assert_that!(&vec![1, 2, 3, 4], contains_all_of(vec![1, 2, 3]));
///     assert_that!(&vec![1, 2, 3], does_not(contain_all_of(vec![1, 2, 4])));
/// }
/// ```

[povilasb]

ping :)

[povilasb]

Note that build fails because of travis issues:

error: toolchain 'beta-x86_64-unknown-linux-gnu' does not have the binary `cargo-fmt`