Favor partial fractions in manualintegrate
Favor substitution over expansion in manualintegrate
Add trig substitutions for manualintegrate (WIP)
Implement asin, asinh, acosh rules for manualintegrate
Add trig substitution rule to manualintegrate
manualintegrate: Don't use trigsub if result cannot be evaluated
Add IPython Notebook Checkpoints to .gitignore
Point3D
Merge pull request #7545 from debugger22/gitignore

Add IPython Notebook Checkpoints to .gitignore
Merge pull request #2712 from lidavidm/manualintegrate_improvements

Manualintegrate improvements
Merge pull request #7522 from akshayah3/Point3D

Point3D class in Geometry
7547: nsolve recognizes systems with Eq
Merge pull request #7548 from smichr/nsolve

7547: nsolve recognizes systems with Eq
Fix `Basic.rewrite()` behavior

Fixes the behavior of `Basic.rewrite` to call the opropriate rule
function.  Furthermore, added handling for `deep` keyword to
`Basic.rewrite()`, which defaults to `True`.  This change allows the
removal of `Function.rewrite()` and `physics.quantum.QExpr.rewrite()`
methods, however, the default behavior is changed from `deep=False` to
`deep=True`.
Revert physics.quantum.QExpr.rewrite to fix spin doctest
Merge pull request #7556 from flacjacket/rewrite_fix

Fix `Basic.rewrite()` behavior
Added egyptian_fraction function for calcualting Egyptian Fractions