Added jUnit Support (Fixes #16)
Updated Tests, etc.
Rule: Function has too many parameters
Updating max-params rule name
Rule: no assignment in return statement
Rule: no-plusplus

Created the no-plusplus rule. This rule disallows the use of unary operators, `++` and `--`, as such the following would be flagged:

```js
var foo = 42;
foo++;
foo--;
```

This rule matches JSHint's **plusplus** rule.
Merge pull request #116 from ilyavolodin/too-many-params

Rule: Function has too many parameters (fixes #115)
Merge pull request #111 from ilyavolodin/no-return-assign

Rule: no assignment in return statement
Better documentation for the `no-plusplus` rule.
Merge pull request #126 from iancmyers/rule-no-plusplus

Rule: no-plusplus
Merge pull request #27 from xjamundx/master

jUnit Support