Small fix for parse_ipv4

Still problems on 32bit due to issues discussed in #3447
Merge branch 'master' of github.com:JuliaLang/julia
restore the essential colons lost in 53ea7850d24f855304977162034b820ac49d5d69. fix #3533
fix base_module_conflict flag
Replace x.^2 with x.*x to improve performance
Discussion in https://github.com/JuliaLang/julia/commit/18ab38e949207c17b6ef2715b54bd3ccfdf313d9
Merge branch 'master' of github.com:JuliaLang/julia
Merge branch 'master' of github.com:JuliaLang/julia
formatting fixes
Actually look at the term signal

but treat SIGPIPE as normal termination.

Closes #1469
doc: change pipeline operator | to |> [fixes #3523]
Support LLVM 3.3, Fixes #3418
Add in webhook notifications for codespeed