Improve parsing of DOT files.
Merge branch 'master' of github.com:magsilva/geteto

Conflicts:
	.gitignore
	geteto-core/pom.xml
	geteto-core/src/br/jabuti/graph/layout/graphviz/BoundingBox.java
	geteto-core/src/br/jabuti/graph/layout/graphviz/Dot.jj
	geteto-core/src/br/jabuti/graph/layout/graphviz/Position.java
	geteto-core/src/br/jabuti/graph/view/gvf/BoundingBox.java
	geteto-core/src/br/jabuti/graph/view/gvf/Position.java
	geteto-ui-swing/src/br/jabuti/graph/layout/graphviz/BoundingBox.java
	geteto-ui-swing/src/br/jabuti/graph/layout/graphviz/Position.java
	parent/pom.xml