no need to pull Permutations.jl anymore

.travis.yml

@@ -18,7 +18,6 @@ notifications:
 # uncomment the following lines to override the default test script
 script:
   - if [[ -a .git/shallow ]]; then git fetch --unshallow; fi
-  - julia -e 'Pkg.clone("https://github.com/scheinerman/Permutations.jl.git")'
   - julia -e 'Pkg.clone(pwd()); Pkg.build("Groups"); Pkg.test("Groups"; coverage=true)'
 after_success:
   # push coverage results to Coveralls