Fix pass-by-reference in bulirsch_stoer_dense_out
bulirsch_stoer_dense_out always passed the ODE system as value to its underlying midpoint method.
Merge pull request #129 from wschreyer/master

Fix pass-by-reference in bulirsch_stoer_dense_out.
adding two level specialization for is_resizeable
make two level specialization with sfinae for same_size, resize, copy, algebra_dispatcher, and operation_dispatcher
specializations so that nt2 works with odeint
includes corrected
unit tests and Jamfile added
added is_resizeable unit test
copyright updated
example of odeint with nt2
Jamefile added, copyright updated and loop extended to match original example
instructions added for using NT2/avx
Jamfiles corrected, gcc specific flags are marked so and NT2_SIMD_FLAGS is read from an environment variable
minimal table header, code cleaned, extent used instead of size for resizing/size comparison
infinity norm on a matrix is defined as the max of the row sums
norm_inf unit test updated
parentheses correct on environemtn variable
parentheses correct on environment variable
nt2:tie used to take better advanatge of openmp
NT2_ROOT changed to NT2_ROOT_PATH because NT2 misbehaves when NT2_ROOT is defined