Support host count in machinefile

- Support the syntax `[user@]host[:port][*count] [bind_addr]` in the
  machinefile.
- Initial code just re-writes the list fed to addprocs() by repeating the host
  as specified, so there is no user-visible change.
Move the host count to the beginning: [count*]...
Add rowvals(A) and nzrange(A, col) to make the sparse matrix interface a little friendlier.
Patch openblas to add 64_ suffix when using 64 bit ints

objconv cannot do in-place modification of files

dont overwrite static library with objcopy on freebsd either

fix linking of arpack and suitesparse with 64_ blas suffix

the patched xlahqr2 was using UPPERCASE function names, and the probes
during arpack configure were using the C compiler, sgemm_ and cheev_
need to enable c preprocessor, and disable syntax error on long lines

SPQR also needed -DSUN64
add a separate blas_vendor for suffixed openblas
Fixes #8483 by correcting the auto completion on windows added some test cases + fixed an error that were discovered when doing `using B<tab>` before Pkg.init().
add hexfloat (%a) support for printf
add blasfunc for appending suffix to all blas and lapack symbols
add osx-only objconv dependency for renaming symbols
add .tar.xz and .zip files to source-dist
Merge Nullable types into the Types section of the manual.
Update developer docs with push/popmeta! changes.
Faster sparse matrix multiplication (#8316)
This uses sortSparseMatrixCSC!(S) instead of double transpose to sort the result.
(Viral committing an improved version of Glen Chisholm's original PR).
Provide a way to sort sparse matrix columns with a double transpose (#8316).
Fix #8777
Create Complex.java

Class for Complex numbers and simple operations on them.
Update PerfBLAS.java

Change the mandel method to make use of the Complex type removing the manual inlining and strength reduction of complex number operations.
Merge pull request #8780 from JuliaLang/vs/nultypes

Merge Nullable types into the Types section of the manual.
Update Complex.java
Update PerfBLAS.java