Added license header formatting and checking in gradle

[sauravvishal8797]

fixed #114 Added license header formatting and checking in gradle.

[KeenWarrior]

@sauravvishal8797 You missed 3 things

• Add excludes which are provided in pox.xml
• Put Header file in place. That is misc/HEADER
• Set year to current of calendar inside license plugin. Described in README of license plugin

[KeenWarrior]

Copyright 2015-${year} Red Hat, Inc. and/or its affiliates and other contributors as indicated by the @author tags.

Licensed 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.

[KeenWarrior]

@sauravvishal8797 Use this as header file

[danielpassos]

Can you please rebase this one from master?

[KeenWarrior]

@sauravvishal8797 Our current system is having finding HEADER file unrecog extension https://travis-ci.org/hawkular/hawkular-android-client/builds/209670767#L1129

What we can do for this is rename HEADER to HEADER.txt in all 3 locations

[pilhuhn]

The build still fails due to bad license. See https://travis-ci.org/hawkular/hawkular-android-client/builds/209679245#L1137

Please run (the Gradle equivalent) of mvn license:format on the files and also commit the ones that have changed.

[KeenWarrior]

thanks @sauravvishal8797