3562: Replace Method for MutableMatrix
Code quality improved
Support for map argument added
Test added for map. Code Now compliant with PEP8
HadamardProduct infers element type
Assumptions - element types of slices/blocks
element types of trace and determinant
Merge pull request #2024 from thilinarmtb/3562_matrix_replace

3562: Replace Method for MutableMatrix
Add Thilina Rathnayake to the AUTHORS/aboutus. Welcome to SymPy!
Added valueerror catch in textplot
Merge pull request #2063 from mrocklin/matrix-fix-1

Type assumptions on matrices - extra classes
Merge pull request #2068 from catchmrbharath/textplotfix

Fix 3795