Add new methods to #fields (any, global) and expand th:errors  for "global", "all" and "*"
Add Javadoc and optimize code
Merge branch '2.1-dev' of github.com:lightszentip/thymeleaf-spring3 into lightszentip-2.1-dev

Conflicts:
	src/main/java/org/thymeleaf/spring3/util/FieldUtils.java
Added missing Fields method. Closes #21. Closes #25