[test.operator_products_prolong] disable properly
add template parameter ScalarImp to occurences of Matrix/Vectorinterface
add template parameter ScalarImp to occurences of Vector/MatrixInterface
[localevaluation.swipdg] add missing include
[test.grids] add definition of AluConform3dGridType
[assembler] fix ScalarTypes for Vector/MatrixInterface
[operators] fix ScalarTypes for Vector/MatrixInterface
[products.interfaces] fix ScalarType for VectorInterface
[test.elliptic-estimators] update testing framework, closes #2
[cmake] search for spe10 model1 data and create appropriate link
[products.ESV2007] base on LocalOperatorProviderBase
[test.elliptic...] disabled ESV07 testcase, refs #4

Also do not run sgrid tests if alugrid was found since we do not have expected
results for sgrid yet (refs #22)
[spaces...] update grid provider usage
[test] update grid view (part) usage