update for latest linear-algebra and traversal eggs
bar should be length for list and vector-length for vectors, yet determinant for matrices and abs for numbers
handle newlines in tex literals
new pattern syntax with functions of multiple variables
 needed for floats in equations
AD support
fix off-by-one error
fix bug in function calls and corner case in piecewise functions
vector norm, \hat, log/sin/cos/tan
schemetex can now run at compile time
cleaned up scripts
egg scripts, bugfixes for compiled code
minor cleanup, got rid of broken rule