CSS Parser Code

Brought to you by: alankrueger, davidsch, rbri

Commit [r687] Maximize Restore History

% use an adapter to avoid casting on every method call

Authored by: rbri 2018-01-19

changed	/trunk/cssparser/src/main/java/com/steadystate/css/parser/AbstractSACParser.java
added	/trunk/cssparser/src/main/java/com/steadystate/css/parser/DocumentHandlerAdapter.java
changed	/trunk/cssparser/src/test/java/com/steadystate/css/parser/SACParserCSS21Test.java
changed	/trunk/cssparser/src/test/java/com/steadystate/css/parser/SACParserCSS3Test.java