[#293 integrate (1/(1+x^4),x = %minusInfinity..%plusInfinity)] another instance of the same problem

[kratt6]

Changes 
http://wiki.axiom-developer.org/293Integrate11X4XMinusInfinityPlusInfinity/diff
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\begin{axiom}
integrate((x^4+2*a*x^2+1)^-1, x=0..%plusInfinity, "noPole")
\end{axiom}
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forwarded from http://wiki.axiom-developer.org/[EMAIL PROTECTED]