build: add gitlab-ci

.gitlab-ci.yml

+image: java:8
+
+variables:
+    GRADLE_OPTS: "-Dorg.gradle.daemon=false"
+    TERM: "dumb"
+
+before_script:
+    - chmod +x gradlew
+
+stages:
+  - build
+
+build:
+  stage: build
+  script:
+    - sed -i " 1 s/.*/&-b${CI_JOB_ID}/" version
+    - ./gradlew -g /cache/.gradle clean build jacocoTestReport dist
+  artifacts:
+    paths:
+    - build/jadx*.zip

README.md

 ## JADX
 
 [![Build Status](https://travis-ci.org/skylot/jadx.png?branch=master)](https://travis-ci.org/skylot/jadx)
-[![Build Status](https://drone.io/github.com/skylot/jadx/status.png)](https://drone.io/github.com/skylot/jadx/latest)
+[![Build Status](https://gitlab.com/skylot/jadx/badges/master/build.svg)](https://gitlab.com/skylot/jadx/commits/master)
+[![coverage report](https://gitlab.com/skylot/jadx/badges/master/coverage.svg)](https://gitlab.com/skylot/jadx/commits/master)
 [![Code Coverage](https://codecov.io/gh/skylot/jadx/branch/master/graph/badge.svg)](https://codecov.io/gh/skylot/jadx)
 [![Coverity Scan Build Status](https://scan.coverity.com/projects/2166/badge.svg)](https://scan.coverity.com/projects/2166)
+[![Latest release](https://img.shields.io/github/release/skylot/jadx.svg)](https://github.com/skylot/jadx/releases/latest)
+[![Latest release downloads](https://img.shields.io/github/downloads/skylot/jadx/latest/total.svg)](https://github.com/skylot/jadx/releases/latest)
 [![License](http://img.shields.io/:license-apache-blue.svg)](http://www.apache.org/licenses/LICENSE-2.0.html)
 
 **jadx** - Dex to Java decompiler
@@ -14,7 +17,7 @@ Command line and GUI tools for produce Java source code from Android Dex and Apk
 
 
 ### Downloads
-- [unstable](https://drone.io/github.com/skylot/jadx/files)
+- [unstable](https://gitlab.com/skylot/jadx/builds/artifacts/master/browse/build?job=build)
 - from [github](https://github.com/skylot/jadx/releases)
 - from [sourceforge](http://sourceforge.net/projects/jadx/files/)
 
@@ -91,4 +94,4 @@ Also I need to **prioritize** these task for complete most important at first.
 ---------------------------------------
 *Licensed under the Apache 2.0 License*
 
-*Copyright 2016 by Skylot*
+*Copyright 2018 by Skylot*

build.gradle

+plugins {
+    id 'com.github.ksoichiro.console.reporter' version '0.5.0'
+}
+
 ext.jadxVersion = file('version').readLines().get(0)
 version = jadxVersion
 
@@ -5,6 +9,7 @@ allprojects {
     apply plugin: 'java'
     apply plugin: 'groovy'
     apply plugin: 'jacoco'
+    apply plugin: 'com.github.ksoichiro.console.reporter'
 
     version = jadxVersion
 
@@ -72,9 +77,6 @@ task samples(dependsOn: 'jadx-samples:samples') {
 task testAppCheck(dependsOn: 'jadx-test-app:testAppCheck') {
 }
 
-task pitest(overwrite: true, dependsOn: 'jadx-core:pitest') {
-}
-
 task cleanBuildDir(type: Delete) {
     delete buildDir
 }