Add Vagrantfile and fabfile
Make it work with SymPy
Add README
Better installation instructions
Fix docstring
Fix typo
3861: Fix the latex printing of 'array'.
3861: Change the default latex matrix type.

Use 'smallmatrix' for mode='inline', use 'array' otherwise.
Fully instantiate only the best candidate formulas
Simplify Formula.find_instantiations()
Try enough instantiations of the formula to ensure finding the best one.
Remove unused code
Merge pull request #2235 from shikil/dpll2

Fix docstring
Merge pull request #2236 from shikil/typo

Fix typo
Determine the default latex matrix type according to size.
Change the ipython printing test to use init_printing().

This removes the following deprecation warning while running the tests:

sympy/interactive/tests/test_ipythonprinting.py[1] sympy/utilities/exceptions.py:149:
SymPyDeprecationWarning:

using %load_ext sympy.interactive.ipythonprinting has been deprecated
since SymPy 0.7.3. Use from sympy import init_printing ;
init_printing() instead. See
http://code.google.com/p/sympy/issues/detail?id=3914 for more info.

  warning(see_above, SymPyDeprecationWarning)
.                                                            [OK]
Skip plotting doctest in sympy/geometry/ellipse.py

Fixes issue 3925: Failing doctest in sympy/geometry/ellipse
http://code.google.com/p/sympy/issues/detail?id=3925
Fix cancel() of a Piecewise().

Fixes issue 3923: Calling cancel() on a Piecewise() instance.
http://code.google.com/p/sympy/issues/detail?id=3923
Merge pull request #2244 from jrioux/piecewise

Fix cancel() of a Piecewise().
Merge pull request #2246 from jrioux/interactive

Skip plotting doctest and avoid deprecation warning.