rewritten FFTW interface
update dsp.jl to use new fft API
whoops, fft! in-place functions only work on complex arrays
update extras/image.jl to use new fft API
Use SVD for computing the condition number of matrices (#1862)
Return Inf for singular matrices.
cond(A,2) also returns NaN for all zeros input.

To fix:
cond(A,p) returns Inf for all zeros input except when p = 2.
Close #1861
Use norm(A, :fro) instead of norm(A, "fro")
documentation for cond and norm
Use LapackException. We do not have SingularException.
Close #1862
we do not have catch-by-type clauses
Add scale! functions and use in norm.
Merge branch 'master' of github.com:JuliaLang/julia
bugfix, test cases for FFTs of subarrays
Merge branch 'master' of git://github.com/JuliaLang/julia into new_fftw
update FFT docs
in brfft, d can be any integer, not just Int
define FFT functions for scalars (where they are just the identity)
add a cross-compile target, for building WINNT on LINUX (libuv still requires a tiny patch)
Merge pull request #1847 from vtjnash/jn/cross-compile

add (most of) a cross-compile target -- for building WINNT on LINUX
generalize blas scale! definitions a bit
temporary hack to force rebuild of llvm if it was previously configured in the source directory (which is something configure typically doesn't handle well, and thus was changed in the cross-compile target update). I'm hoping this is easier than emailing the list, since it should be nearly automatic of a fix