modified VigraWrapper to use images backed by unsafe instead of direct buffers.
update nar-maven-plugin version in pom
remove unused stuff
bump parent to pom-scijava 1.162 and use managed dependency versions
git ignore .DS_Store
use vigra from standard path
dispose scifio context
MultiArrayInfo java and c++ classes (shape, type, and data_ptr)
added MultiArrayInfo.getMultiArray<N,T>() function
bring back additional dimensions and types. clean up.
Merge branch 'unsafe' into exception

Conflicts:
	pom.xml
	src/main/cxx/VigraWrapper.cxx
	src/main/java/net/imglib2/vigra/VigraWrapper.java
load native library in VigraExceptionTestHelper