update travis and readme (#102)

Author: Pietro Vertechi

.travis.yml

@@ -7,6 +7,7 @@ julia:
   - 1.0
   - 1.1
   - 1.2
+  - 1.3
   - nightly
 notifications:
   email: false

README.md

@@ -1,7 +1,7 @@
 # StructArrays
 
-[![Build Status](https://travis-ci.org/piever/StructArrays.jl.svg?branch=master)](https://travis-ci.org/piever/StructArrays.jl)
-[![codecov.io](http://codecov.io/github/piever/StructArrays.jl/coverage.svg?branch=master)](http://codecov.io/github/piever/StructArrays.jl?branch=master)
+[![Build Status](https://travis-ci.org/JuliaArrays/StructArrays.jl.svg?branch=master)](https://travis-ci.org/JuliaArrays/StructArrays.jl)
+[![codecov.io](http://codecov.io/github/JuliaArrays/StructArrays.jl/coverage.svg?branch=master)](http://codecov.io/github/JuliaArrays/StructArrays.jl?branch=master)
 
 This package introduces the type `StructArray` which is an `AbstractArray` whose elements are `struct` (for example `NamedTuples`,  or `ComplexF64`, or a custom user defined `struct`). While a `StructArray` iterates `structs`, the layout is column based (meaning each field of the `struct` is stored in a seprate `Array`).