Update travic CI to new asn1 ber

Author: vagruchi

.travis.yml

@@ -13,15 +13,15 @@ go:
     - tip
 
 git:
-  depth: 1
+    depth: 1
 
 matrix:
     fast_finish: true
     allow_failures:
         - go: tip
 go_import_path: gopkg.in/ldap.v3
 install:
-    - go get gopkg.in/asn1-ber.v1
+    - go get github.com/go-asn1-ber/asn1-ber
     - go get code.google.com/p/go.tools/cmd/cover || go get golang.org/x/tools/cmd/cover
     - go get github.com/golang/lint/golint || go get golang.org/x/lint/golint || true
     - go build -v ./...