Build corrections for CLANG ( problem with includes?)

correction for clang added

change in recoTask ( ROOT output only in RuntimeDB)
New FairDbMQ library (First Online Database Concept) + New Tutorial6
Adding Spec. Headers
Adjusted code for CLANG
Adjusted code for CLANG
add data directory to the macro otherwise the macros crash
reduce the event number in tutorial 6
Add Tutotorial 6 to tests
correct path in MQ script