WINDOWS: fix normalization of BUILD_OS variable
improve complex sin and cos. fixes #2889
Merge branch 'master' of github.com:JuliaLang/julia
Fixes tan for small values of argument (followup to #2889)
improve complex tan, sinh, cosh, tanh
fixes #2889
attempt fix of #2893
Generalize set_dash to support offsets
WINDOWS: workaround for #2892
pool constants from compressed ASTs per-module, which is more efficient
fix #2885
allow Ptr{Int8} to work with ByteString, since it might be Ptr{Cchar}. closes #2603
fix #2899, regression
rename BoundingBox contains() to isinside()
helpful error for contains(String, String)
speed up Matrix{Float64|Complex128}*vector, where the vector is of some smaller type. closes #2853

in such a case, it is reasonable to copy the vector to a different type.
make Nothing immutable
fix incorrect ccall signatures of memset, jl_readBuffer,
jl_uv_fs_t_ptr_offset, and memchr, as identified in #2901
Rename copy_unsafe! to unsafe_copy! and export it (#2871).

Also add a version of unsafe_copy! that works with pointers,
and acts as a memcpy wrapper.

I have not added this to the list of deprecations since the function
was not exported until now.
Fix typo: export unsafe_copy!
Documents using Travis CI for packages
fix #2905 - regression caused by 0228c1cab0222fc4684954842fd6e028601fc1ba re: AST compression efficiency