=> ir FunctionCollections now overload the += operator and provide functionality to find their first instance starting from the current root

=> remove CleanUnusedStuff strategy

StandaloneStrategy HACK to get a simple strategy interface, IR strategy to resolve IR_SlotAccess to integer const

=> inner ir Loops now remain parallel when expanding LoopOverDimensions

=> finish extracting nodes from omp package
=> remove 'new' omp PotentiallyParallel as well

copy behavior of loops regarding OMP_PotentiallyParallel to loops' ir ParallelizationInfo.potentiallyParallel

The shell will complain anyhow if the path is bad.

Tries hard to find the path to JDK and Scala to setup the class path.

introduce ir ParallelizationInfo to encapsulate reduction -> to be extended with potentiallyParallel