Update travis file (#338)

* codecov

* Pkg.clone -> Pkg.add

* PackageSpec url

* will work now

* another test

* syntax

* fix

.travis.yml

@@ -6,8 +6,8 @@ os:
 #  - osx
 
 julia:
-  - 1.2
   - 1.3
+  - 1.4
 
 notifications:
   email: false
@@ -26,21 +26,19 @@ notifications:
 #before_script: # homebrew for mac
 #  - if [ $TRAVIS_OS_NAME = osx ]; then brew install gcc; fi
 
-
 script: # the default script is equivalent to the following
   - if [[ -a .git/shallow ]]; then git fetch --unshallow; fi
-  - julia --project=test/ -e 'using Pkg; Pkg.clone("https://github.com/atoptima/ColunaDemos.jl.git"); Pkg.clone(pwd()); Pkg.build("Coluna"); Pkg.test("Coluna"; coverage=true)';
+  - julia --project=test/ -e 'using Pkg; Pkg.add(PackageSpec(url="https://github.com/atoptima/ColunaDemos.jl.git")); Pkg.add(PackageSpec(path=pwd())); Pkg.build("Coluna"); Pkg.test("Coluna", coverage=true);'
 
 after_success:
-  - julia -e 'using Pkg; Pkg.add("Coverage"); using Coverage; Codecov.submit(Codecov.process_folder())'
+  - julia --project=test -e 'using Pkg; Pkg.add("Coverage"); using Coverage; Codecov.submit(Codecov.process_folder());'
 
 jobs:
   include:
     - stage: "Documentation"
       julia: 1.3
       os: linux
       script:
-        - julia --project=docs/ -e 'using Pkg; Pkg.clone("https://github.com/atoptima/BlockDecomposition.jl.git"); Pkg.clone("https://github.com/atoptima/ColunaDemos.jl.git"); Pkg.develop(PackageSpec(path=pwd())); Pkg.instantiate()'
+        - julia --project=docs/ -e 'using Pkg; Pkg.add(PackageSpec(url="https://github.com/atoptima/BlockDecomposition.jl.git")); Pkg.add(PackageSpec(url="https://github.com/atoptima/ColunaDemos.jl.git")); Pkg.develop(PackageSpec(path=pwd())); Pkg.instantiate();'
         - julia --project=docs/ docs/make.jl
       after_success: skip
-