First deploy to create doi

• This release is mainly to trigger DOI generation by zenodo
• Fixed commit command in Makefile release target to properly commit and and push the changes made in README.md when make release is invoked.

TxBR available in AWS via CloudFormation Template

** Added ability to launch TxBR via AWS CloudFormation template. Link has been added to wiki and to main README.md page. The template is also available as a link on these release page.

** Fixed bug where fiducial markers were not lined up in fhv6.tar.gz dataset in examples/data directory of source tree. Issue #2

Bug fixes for 3.1.1

• Switched code import of scipy.lib.blas to scipy.linalg.bias in
  txbr/util/mpfit/mpfit.py
• Fixed bugs in scripts/txbr_filter.py where wrong variable was used
  for path for .preali files and fixed typo in variable name used
  in line to set the path to the .remap file.
• Under examples/data fixed fhv6.tar.gz tarball by updating pixel sizing
  in fhv6b.preali cause it was set to 4 angstroms per pixel instead of
  1 (the value in fhv6a.preali)
• Updated setup.py to try to use setuptools first and if that fails to
  fallback on distutils.core
• Added Makefile and singularity target that creates a singularity txbr
  image.
• Added Vagrant configuration under vagrant/ directory
• Updated setup.cfg to be more generic.