convert longnames to unicode
permit all letters in symbol names
enable entering characters by hex/oct codes
add simple tests for new character input modes
decode utf-8 byte strings to allow unicode characters in parser input
add aliased_characters dict to core.characters
implement letterlike pattern and allow letterlikes in symbol names
add tests for letter-like forms in symbols
decode shell input using sys.stdin.encoding
temp hack to escape \[DifferentialD] for TeXForm
fix RowReduce on improperly sized nested lists
handle sympy RuntimeError bug in Limit[]
add previously failing Integrate tests
add TODO to Plot
add TODO to Eigenvectors
add failing test to Integrate
fix bug in Eigenvectors: zero eigenvectors
fix bug in Plot: Invalid AspectRatio should not raise NumberError
update CHANGES.rst and AUTHORS.txt for version 0.6
Copyright is 2011-2013 The Mathics Team