SymPy 0.5.10 released

Changes:

• view renamed to preview, pngview, pdfview, dviview added (commit)
• latex printer was rewritten, preview uses builtin pyglet instead of pygame (commit 1, 2)
• square root denesting implemented (commit)
• parser of simple Mathematica expressions added (commit)
• TeXmacs interface written (commit)
• some integration fixes (commit 1, 2, 3)
• line width in 2D plotting can be specified (commit)
• README was updated (commit 1, 2)
• pyglet and mpmath were updated and moved to sympy/thirdparty (commit 1, 2, 3, 4, 5)
• all sys.path hacks were moved to just 2 places - pyglet and examples (commit 1, 2, 3)
• SymPy objects should work in numpy arrays now (commit 1, 2)
• hand written sympify() parser was rewritten and simplified using Python AST (commit)

See also Changes.