Improve class dsl format.
Add sample code.
Update sample.
Merge branch 'master' of github.com:takezoux2/code-generator

Conflicts:
	project/plugins.sbt
	src/main/scala/com/geishatokyo/codegen/Generator.scala
	src/main/scala/com/geishatokyo/codegen/dsl/parser/GenericDSLParser.scala