fix for #168
fixed several bugs that were introduced by changes in numpy 1.9 and new astropy.
added new version of astropy_helpers
updating pip version to get the wheel distributions
Merge pull request #190 from wkerzendorf/general/fixing_unit_problems

General/fixing unit problems
Merge pull request #188 from orbitfold/master

A macro to automagically fix inline issues
added a variety of vagrant related stuff
restructuring TRAVIS to be easier to read
changed some of the pip-requirements to reflect TRAVIS
added several new include entries for TRAVIS
python-astropy doesn't exist for travis yet.
switching over to conda
adding the bootstrap script
revamp of the installation instructions
fixed compiler problem
making pytest install via conda
some more fixes
fixing tables requirement
fix of probably sever bug that caused AtomicData to remember the last choice of selected atoms when repreparing
added test for that fix