Added case for background-size

The background-size property should not have its parameters simplified, as the 'simplified' version is not equivalent.
Merge pull request #14 from discoB/propertyfix

Added case for background-size (fixes #13)
Issue #9 - Nested selectors, space before closing bracket in new line
Merge pull request #15 from si13b/master

Issue #9 - Nested selectors, space before closing bracket in new line
Issue #10 - Better handling of background URI
Merge pull request #16 from si13b/master

Issue #10 - Better handling of background URI
Update README.md

Add contributors
Update README.md

Update usage to point towards ant.
Update LICENSE
Added JUnit dependencies and ant task for tests
Added JUnit dependencies and ant task for tests
Merge pull request #18 from si13b/master

Added JUnit dependencies and ant task for tests
BASE-422: Fix CSSMin issues 11 & 12