fix A[]=x for Array and BitArray
fix gen_cartesian_map in the case of ranges===()
fix #3031. backtraces for WIN32 and (sometimes) WIN64
WINDOWS 64: let the user know that their backtraces are dreadful
fix #3227, tab complete after :
EachLine: close stream only if automatically opened. fixes #3228
bitarray: cosmetics in dequeue functions
bitarray: add insertion argument to splice!
bitarray: fill! uses Array's fill!
bitarray: faster unary minus
bitarray == and != use Arrays' versions
bitarray: faster find, fix findnext(not)