Update Travis config

- Add license header
- Clone CouchDB faster
- Test against Erlang 18.1 and 18.2
- Drop R14B04 support
- Use new better way to run specific app tests
- Use containers
diff --git a/.travis.yml b/.travis.yml
index 526b5f8..ed8f466 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,15 +1,36 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 language: erlang
 
 otp_release:
+  - 18.2
+  - 18.1
   - 18.0
   - 17.5
   - R16B03-1
-  - R14B04
+
+sudo: false
+
+addons:
+  apt:
+    packages:
+      - libmozjs185-dev
 
 before_install:
-  - sudo apt-get update -qq
-  - sudo apt-get -y install libmozjs-dev
-  - git clone https://github.com/apache/couchdb
+  - git clone --depth 1 https://github.com/apache/couchdb
 
 before_script:
   - cd couchdb
@@ -18,7 +39,6 @@
   - make
 
 script:
-  - rebar setup_eunit
-  - BUILDDIR=`pwd` rebar -r eunit apps=couch_replicator
+  - make eunit apps=couch_replicator skip_deps=couch_epi,couch_log
 
 cache: apt