Squashed 'moose-core/' changes from eb878dd..4f391e1

4f391e1 --std=c++11 is must now. Fixes BhallaLab/moose#214.
718252a Do not copy VERSION file for python. Lets find a better and more portable solution.
f26225d Updated default version in setup.py file.
1476ea1 Merge commit '0ff1b77a'
0da1cc4 VERSION string is fixed to today's date if not given.

git-subtree-dir: moose-core
git-subtree-split: 4f391e1ef906eacb103bb85d723ee98453f06d5b