Travis updated to test with Julia 1.2 and allow to fail with nightly.

.travis.yml

@@ -1,16 +1,19 @@
 language: julia
-
 os:
     - linux
-
 julia:
     - 1.0
+    - 1.2
     - nightly
-
+matrix:
+  allow_failures:
+    - julia: nightly
+  fast_finish: true
+notifications:
+  email: false
 script:
     - julia --project -e 'using Pkg; Pkg.add(PackageSpec(url="https://github.com/JuliaFEM/Materials.jl"));
                           Pkg.build();
                           Pkg.test(; coverage=true)'
-
 after_success:
     - julia -e 'import Pkg; Pkg.add("Coverage"); using Coverage; Coveralls.submit(Coveralls.process_folder())'