unsigned long long requires C++11 - an unecessary requirement

on my laptop using GCC g++ 5.2.0 unsigned long and unsigned long long are both eight bytes

writeHeader and writeDataBlock to support stream write functions

readDataBlock without the safety checks

readheader for powwwwaaahhh users

use C style comments

fix leak under asan

fix leak of mpi communicator

fix posix last header phrase mem leak

initialize vars before use

copy phrase string in writeheader

copy the string instead of using the pointer

phio_readdatablock replaces readdatablock calls

the fname to string conversion for \'solution\' in readnblk was missed in previous commits

phio_readheader replaces readheader calls

helper phComm fns to get communicator info without having mpi.h everywhere

append delimiters and part id to readheader keyphrase

pass keyphrase into readheader and readheader appends partid and delimiters

Initial Commit