ytbx release v1.3.0

ef56de8 Add Go modules directory to Travis cache
f14aebb Add delete function
04e828b Introduce parent to traverse tree function
21a6f7c Remove obsolete style parameter in ComparePaths
3f2d616 Add IsPathInTree function
d9cb0ce Fix gofmt/goimports issue
ccfad22 Refactor grab function code
3f1e5d6 Bump Go version to 1.15
9d02ce4 Bump dependency versions
4150ca6 Bump golang-dev-tools in Travis
af0a2ca Add Go version badge
c04e88d Replace godoc with pkg.go.dev
0cde8d4 Replace default branch name
2de92f0 Bump github.com/onsi/ginkgo from 1.12.1 to 1.14.0
bfec952 Bump github.com/onsi/gomega from 1.10.0 to 1.10.1
c113951 Bump github.com/onsi/ginkgo from 1.12.0 to 1.12.1
972a032 Bump github.com/onsi/gomega from 1.9.0 to 1.10.0
53df4c5 Bump github.com/gonvenience/neat from 1.2.2 to 1.3.0
f1e9b45 Bump github.com/gorilla/mux from 1.7.3 to 1.7.4
b4dad5a Bump github.com/onsi/gomega from 1.8.1 to 1.9.0
6884b91 Bump github.com/onsi/ginkgo from 1.11.0 to 1.12.0
958bf7a Bump github.com/gonvenience/neat from 1.2.1 to 1.2.2