Merge pull request #36 from fatih/fix-coverall

travis.yml: adopt to new travis changes

.travis.yml

@@ -1,11 +1,8 @@
 language: go
-go: 1.3
+go: 1.5
 before_install:
 - go get github.com/axw/gocov/gocov
 - go get github.com/mattn/goveralls
-- go get code.google.com/p/go.tools/cmd/cover
+- if ! go get github.com/golang/tools/cmd/cover; then go get golang.org/x/tools/cmd/cover; fi
 script:
-- $HOME/gopath/bin/goveralls -repotoken $COVERALLS_TOKEN
-env:
-  global:
-  - secure: hkc+92KPmMFqIH9n4yWdnH1JpZjahmOyDJwpTh8Yl0JieJNG0XEXpOqNao27eA0cLF+UHdyjFeGcPUJKNmgE46AoQjtovt+ICjCXKR2yF6S2kKJcUOz/Vd6boZF7qHV06jjxyxOebpID5iSoW6UfFr001bFxpd3jaSLFTzSHWRQ=
+- $HOME/gopath/bin/goveralls -service=travis-ci