some refactorinbg and bugfix
gitignore
TestSelectionattr
Merge branch 'master' of ssh://git@github.com/anthonime/gwt-d3.git

Conflicts:
	gwt-d3/gwt-d3-api/src/main/java/org/gwtd3/api/svg/PathDataGenerator.java
	gwt-d3/gwt-d3-demo/src/main/java/org/gwtd3/demo/client/testcases/selection/TestSelectionAttr.java
	gwt-d3/pom.xml