Run only Julia 0.5 on this branch

Author: jiahao

.travis.yml

@@ -2,7 +2,6 @@ language: julia
 os:
     - linux
 julia:
-    - 0.4
     - nightly
 sudo: false
 notifications:

README.md

@@ -1,6 +1,6 @@
 # Combinatorics
 
-[![Combinatorics](http://pkg.julialang.org/badges/Combinatorics_0.4.svg)](http://pkg.julialang.org/?pkg=Combinatorics&ver=0.4)
+[![Combinatorics](http://pkg.julialang.org/badges/Combinatorics_0.5.svg)](http://pkg.julialang.org/?pkg=Combinatorics&ver=0.5)
 [![Build Status](https://travis-ci.org/JuliaLang/Combinatorics.jl.svg?branch=master)](https://travis-ci.org/JuliaLang/Combinatorics.jl)
 [![Coverage Status](https://coveralls.io/repos/JuliaLang/Combinatorics.jl/badge.svg?branch=master&service=github)](https://coveralls.io/github/JuliaLang/Combinatorics.jl?branch=master)
 [![codecov.io](https://codecov.io/github/JuliaLang/Combinatorics.jl/coverage.svg?branch=master)](https://codecov.io/github/JuliaLang/Combinatorics.jl?branch=master)