Remove the test file for the WAV (aka sound) package.

These tests were moved into the WAV package. It is easier to maintain
there.
fix formatting and update expmap
Merge pull request #2141 from dancasimiro/sound

Remove the test file for the WAV (aka sound) package.
fix #2142
add ! to add, add_each, del_each
rename toggle, toggle_each, and xor! to symdiff!
Merge branch 'master' of github.com:JuliaLang/julia
fix AsyncStream eof()
closes #2090 and #2051
Update build instructions for 32-bit macs and snow leopard
close #2140
sorting: allow passing the ordering argument before the algorithm.
deps/nginx: .gitignore build results [closes #2143]
sort(f,v) sortby(f,v) and export {Insertion,Merge,Quick,Tim}Sort.

This allows most common use cases of the sorting API to avoid having
to reach for stuff inside of the Sort module. If you need apply the By
ordering to select or sortperm you still may need it. Exporting the
sort algorithm types is not likely to clash with anything since they
all end with "Sort".
fix several nits with struct compatibility
Chain methods for gemm and gemv to gemm! and gemv!

Add gemm and gemv methods that have an implicit 1.0 multiplier
Chain more foo methods to foo!, add blas tests.

Reformat the linalg tests.
Blas dot for complex, a few convenience methods and some layout.