C++ fix: use JNIObjectMap for extracting xCx symbols
Add BLAS.xml.tflop1
C++ fix: use int64_t for loop size and start/end index (Delite NB with input size 250K was failing for 8 threads)
C++ fix: update types in DeliteCpp
C++ fix: enable JNIObjectMap to replace values with the same key
runtime sync fix: add send/recvUpdates after other sync objects
some cleanup on runtime sync generation