Modified latex printing of Lambda to use \mapsto
Modified tests so working with \mapsto version of Lambda
Removed  that I forgot about in test_latex.py
Modified tests to include parentheses around whole Lambda expression
Corrected tests for Lambda
Create auto update mechanism for development docs [skip ci]
watch for improper separation of base and exp in powsimp

e.g. sqrt(x**a) should not be split as x**a, 1/2 otherwise
it will rejoin as x**(a/2) later -- this is noted with an
inline comment.

For example, consider sqrt(exp(x)) which previously simplied
to exp(x/2). It is easy to demonstrate that these can be different:

>>> eq = sqrt(exp(x)) - exp(x/2)
>>> eq.subs(x, 3 + I).n()
-7.86610435188672 - 4.29727239280679*I
Merge branch 'latex_Lambda' of https://github.com/dpsanders/sympy into dpsanders-latex_Lambda
Correct failing test
Add some names to .mailmap
(Retroactively) add Dhruvesh Vijay Parikh to the AUTHORS/aboutus. Welcome to SymPy!
(Retroactively) add Fawaz Alazemi to the AUTHORS/aboutus. Welcome to SymPy!
(Retroactively) add Kalevi Suominen to the AUTHORS/aboutus. Welcome to SymPy!
(Retroactively) add Pierre Haessig to the AUTHORS/aboutus. Welcome to SymPy!
(Retroactively) add Robert Johansson to the AUTHORS/aboutus. Welcome to SymPy!
(Retroactively) add Stas Kelvich to the AUTHORS/aboutus. Welcome to SymPy!
(Retroactively) add Venkatesh Halli to the AUTHORS/aboutus. Welcome to SymPy!
(Retroactively) add Vlad Seghete to the AUTHORS/aboutus. Welcome to SymPy!
Update .mailmap
(Retroactively) add Kaushik Varanasi to the AUTHORS/aboutus. Welcome to SymPy!