Asserts: Improved the default message from assert.ok

Fixes #570
Closes #572
Expect: Moving to QUnit.assert

Fixes #490
Tests: Namespacing methods

- Tests: Namespacing test and asyncTest methods
- Tests: Namespacing start and stop methods
- Tests: Namespacing expect method
- JSHint: Removing accepted globals in tests
Tests: Whitespace
Tests: Check for methods existance

- Global QUnit methods
- Global assertion methods