bitarray: less unpackings, fix return types, more testing
Fix GSVDDense on 64-bit systems without USE_LIB64

On these systems, BlasInt != Int
Merge pull request #2255 from carlobaldassi/bitnounpk

bitarray: less unpackings, fix return types, more testing
improve Integer^Bool
Merge pull request #2257 from sebastien-villemot/master

Patch applied to Debian package
make ERROR prefix and color part of presentation only; repr() of exceptions now same as other objects
Merge branch 'master' of github.com:JuliaLang/julia
fix toggle => symdiff in intset, closes #2260
Removed expunged stats functions from doc
Adds collections docs
Merge pull request #2261 from binarybana/master

Collections docs
a couple doc edits
Move assert_approx_eq to Test module and rename to test_approx_eq
Make median behave on arrays as mean and var
fix an flisp bug partially responsible for #2239
Merge pull request #2266 from JuliaLang/anj/median

Make median behave on arrays as mean and var
Merge branch 'master' of github.com:JuliaLang/julia
remove some O(n^2) algorithms in the front end
related to #2239. there were only problems for unusual expressions with
very large numbers of variables.
error for expressions that are too large. fixes #2239
use special error printer for errors in scripts too