0.0.4

Over 50 fixups including:
* many documentation spelling error corrections,
* many formatting consistency corrections,
* moving to semi-qualified replacements for some custom types
* moving to semi-qualified calls for ops:: types
* replacing copy with cloned wherever possible
* reduced unnecessary constraints on specific methods
* improved documentation to explicitly not runtime expections where they may be surprising
* added an iter_with_mutliplicity method for getting (element, count) pairs
* take method returns both element and multiplicity
* explicitly documented an invalid runtime value of `get` that is not machine-enforced
* now consistently using `multiplicity` instead of occasionally using generic letters in some signatures
* modified the test suite to be compatible with future versions of rust
* set minimum tested version to current rust stable:1.47

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mset"
-version = "0.0.3" # remember to update html_root_url crate attribute
+version = "0.0.4" # remember to update html_root_url crate attribute
 description = "A mset / multiset / bag implementation"
 keywords = ["mset", "multiset", "bag", "counter", "collection"]
 categories = ["data-structures", "mathematics"]

README.md

@@ -19,7 +19,7 @@ Add this to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-mset = "0.0.3"
+mset = "0.0.4"
 ```
 
 Now, you can use  mset:

src/lib.rs

@@ -1,4 +1,4 @@
-#![doc(html_root_url = "https://docs.rs/mset/0.0.3")]
+#![doc(html_root_url = "https://docs.rs/mset/0.0.4")]
 //! A hash multiset implemented as a `HashMap` where the value is `usize`.
 //!
 //! A mset, multiset, or bag is a set that allows multiple occurances of an