Pull request #16: CAS-14029
Merge in CASA/casampi from CAS-14029 to master
* commit '741d6a7447317e35bf7be2876cb5fae35262ad27':
Update version to 0.5.7
modify the maximum number of digits allowed when converting a string to an integer Setting maxdigits to 0 removes the limit.
rename __mpi_runtime_config.threaded to __mpi_runtime_config.threads
remove from __future__ import division, print_function and from casatools.config import build as tools_config from setup.py