重构
Merge branch 'master' of git@github.com:dayatang/dayatang-codegen.git

Conflicts:
	dayatang-codegen-domain/src/main/java/org/dayatang/codegen/domain/propgen/ListPropertyGenerator.java
	dayatang-codegen-domain/src/main/java/org/dayatang/codegen/domain/propgen/MapPropertyGenerator.java
	dayatang-codegen-domain/src/main/java/org/dayatang/codegen/domain/propgen/PropertyGeneratorFactoryImpl.java
	dayatang-codegen-domain/src/main/java/org/dayatang/codegen/domain/propgen/SetPropertyGenerator.java