changed the methods "getAllAttributesAsString" to return the ID (in case
of an object reference) instead of the MD5 of the object.
Ignore Target and IDEA Directory!!!
Added LangDaniel Configuration
updated save
created HashGenerationTest
fixed all tests
removed gitignorr
Merge branch 'master' of https://github.com/eis14324/E-Framework into eis14324-master

Conflicts:
	src/main/java/at/grueneis/spengergasse/registry/Entity.java
	src/main/java/at/grueneis/spengergasse/registry/Registry.java
	src/test/java/at/grueneis/spengergasse/registry/EntityTest.java
	src/test/java/at/grueneis/spengergasse/registry/RegistryTest.java