Update to openblas 0.2.7
Revert "Update to openblas 0.2.7"

This reverts commit deb45ea459c23eb8690df414386417d1b5a9d8ad.
Added sort performance tests
fix #3781

this was due to println blocking and switching tasks during macroexpansion.
uses of fl_gc_handle were holding on to stack addresses, which cannot be
done around calls to arbitrary julia code. I believe the only place this
was happening was fl_map1, which calls flisp code that might call julia
code. other uses of fl_gc_handle only surround flisp object allocations,
which is ok.
Merge branch 'master' of github.com:JuliaLang/julia
Merge pull request #3791 from kmsquire/sortperf

Added sort performance tests
update helpdb.jl
fix jl_init bitrot for jlapi
Merge branch 'master' of git://github.com/JuliaLang/julia
timedwait added
Added doc