pmap modified to work with any iterable

added generic map on iterators. added docs

added pmap test cases
map with fewer temp arrays
start working on 0.2 release notes
Merge pull request #3996 from JuliaLang/mn/relnotes

[RFC] start working on 0.2 release notes
Merge pull request #3798 from tanmaykm/tanmaykm

pmap modified to work with any iterable
connect, getaddrinfo: generalize for all kinds of strings [#4002].
Merge branch 'master' of github.com:JuliaLang/julia
A faster matchall fuction that returns an array of string.
Revert part of 5a6792755212777fea2e02aec42f16849f1bf7a2 [#4003].
Make match return SubStrings. Improvements to eachmatch.
Use utf8 strings spcefically in regex.
add Float16 to the manual + a few minor contrib tweaks
doc: fix floating-point table formatting
Merge pull request #4002 from JuliaLang/dcj/matchall

RFC: Regex improvements
ensure wait(Task) is always notified on task exit. fixes #3866
also rename on_exit to parent in jl_task_t for consistency with the julia type
Prevent LLVM from rebuilding every time

Only happens when assertions are enabled
add bin, oct, dec, hex for BigInt
Merge branch 'master' of github.com:JuliaLang/julia
rearrangment of NEWS to break into more sections & put more prominent changes earlier on the list
typo