XML writing is more compact now
Refactoring in Simplifier
Merge branch 'master' of github.com:anserran/eadventure

Conflicts:
	core/reader/src/main/java/ead/reader/model/XMLVisitor.java
	core/reader/src/main/java/ead/writer/model/writers/ParamWriter.java
	core/reader/src/main/java/ead/writer/model/writers/simplifiers/Simplifier.java