Update index.rst

Change name repository  julia_es-pe to julia_es-la
add sort(A,dim), sortrows, and sortcols. closes #2484
some compiler efficiency tweaks to try to chip away at load times

some ways to cut down on code generation
- be able to use the interpreter for more top-level expressions
- less recompilation in inference.jl
fix #2842, deserializing immutable values
Merge pull request #2840 from lbenitesanchez/patch-6

Update index.rst
Update to SuiteSparse-4.1.0 (#2830)
possibly fix ccall bug of not properly restoring the temp arg space
Merge branch 'master' of github.com:JuliaLang/julia
Disable the suitesparse tests until the Cholmod tests are fixed.
(#2830)
Update Spanish translation URL as discussed in #2823
fix bug in complex sqrt with -0.0 imaginary part
Fix #2844
Update the language URLs.
Merge branch 'master' of github.com:JuliaLang/julia
Update packages.rst

Explains to contributor that list of available packages will be automatically updated.
Merge pull request #2851 from jiahao/patch-1

Update packages.rst
Slight updates on the doc regarding package list auto-generation
c_CholmodFactor and CholmodFactor depend on version of CHOLMOD

In version 2.1.0 of the CHOLMOD library of C functions a new field was
added to the cholmod_factor struct.  For compatibility the definitions
of the c_CholmodFactor and CholmodFactor types now depend on the
version of the CHOLMOD headers through the value of a trivial C
function jl_cholmod_version defined in deps/Suitesparse_wrapper.c

This is not ideal.  It would be better for the shared object file
libcholmod.so to contain such a function so that the version of the
code in the shared object can be checked and not just the version of
the headers against which deps/Suitesparse_wrapper.c was compiled.

The suitesparse tests are reinstated.  Also mistakes related to the x
and px fields in the external constructor for the CholmodFactor object
from Ptr{c_CholmodFactor} were corrected and the code for the logdet
methods was changed to use the diag extractor.  This allows the logdet
of supernodal factorizations to be evaluated.
Remove duplicate of external constructor for CholmodFactor
Update packages.rst

Encourages contributors to contribute to existing packages whenever sensible,  and lists instructions to check for existing packages.