Merge pull request #6753 from tanmaykm/readcsv

ignore comments in readdlm. fixes #536
fix #6706, allow parsing +(::T, ...)
Merge branch 'master' of github.com:JuliaLang/julia
NEWS.md: mention unicode infix operators
NEWS.md: correct precedence table
use pow, powf instead of powi. fixes #6506

LLVM seems to be able to optimize small constant powers here too.
the pow intrinsic had the same bug as powi.
Add a test of backtraces, and advertise `make testall` in README

Motivated by #6275
Merge branch 'master' of github.com:JuliaLang/julia
fix operator table and NEWS about it
Add file missing from a1a47016ced91a4ab8bf21acf45472ff434d5c9a
give Inf for besselk(n,0.0). fixes #6564
mention Bernoulli sampling in randsubseq docs
Merge pull request #6726 from stevengj/sprand

faster sprand, new randsubseq (fixes #6714 and #6708)
Update linalg.rst

Added example for the eig() function
Update linalg.rst

Array A is now a float array
Merge branch 'master' of git://github.com/brk00/julia into brk00-master

Fix formatting.
Merge branch 'brk00-master'
some setindex methods for sparse matrix.

fixes #6647
Merge pull request #6762 from tanmaykm/sparse

some setindex methods for sparse matrix.
download(..) should return the file name