* added samples for benchmark
* implemented reader for Salts XMI serialization
Merge remote-tracking branch 'origin/ownLoading' into develop

Conflicts:
	salt-benchmark/.classpath
	salt-benchmark/.gitignore
	salt-benchmark/.settings/org.eclipse.jdt.core.prefs
	salt-benchmark/src/test/java/de/hu_berlin/german/korpling/saltnpepper/salt/benchmark/SaltBenchmarkTest.java
	salt-graph/.settings/org.eclipse.jdt.core.prefs
	salt-saltCommon/.settings/org.eclipse.jdt.core.prefs