Merge branch 'master' of https://github.com/SonarSource/sonarqube

# By Julien Lancelot (6) and others
# Via Julien Lancelot
* 'master' of https://github.com/SonarSource/sonarqube:
  SONAR-4764 When removing profile at startup, do not check if the profile is deletable or not
  SONAR-4764 Fix issue on MySQL where profiles are empty because hibernate do not see new rules
  Complete WebService with new param metadata
  SONAR-4764 Remove icon near "Restore Default Profile" button
  SONAR-4764 Add a medium test
  SONAR-4764 Add Java WS Client to restore default profiles
  Rename addExtensions by addComponents
  SONAR-4927 Add Quality Gate widget
  SONAR-4927 Fix Build Breaker (remove alertLevel from new metric)

Conflicts:
	sonar-server/src/main/java/org/sonar/server/rule2/RuleService.java

diff --cc sonar-server/src/main/java/org/sonar/server/rule2/RuleService.java
index 1260fe98638ac3d3a1402a9ffc209ec3669231ea,f00af95d68e8e4d8c5da059eb0da3c06c06a7510..a9087216fd83c688d06281b190295d574f78c636
--- 1/sonar-server/src/main/java/org/sonar/server/rule2/RuleService.java
--- 2/sonar-server/src/main/java/org/sonar/server/rule2/RuleService.java
+++ b/sonar-server/src/main/java/org/sonar/server/rule2/RuleService.java
@@@ -1,29 -1,35 +1,59 @@@
+ /*
+  * SonarQube, open source software quality management tool.
+  * Copyright (C) 2008-2014 SonarSource
+  * mailto:contact AT sonarsource DOT com
+  *
+  * SonarQube is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Lesser General Public
+  * License as published by the Free Software Foundation; either
+  * version 3 of the License, or (at your option) any later version.
+  *
+  * SonarQube is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  * Lesser General Public License for more details.
+  *
+  * You should have received a copy of the GNU Lesser General Public License
+  * along with this program; if not, write to the Free Software Foundation,
+  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+  */
  package org.sonar.server.rule2;
  
+ import org.sonar.api.rule.RuleKey;
 +import org.sonar.server.search.Hit;
  
+ import javax.annotation.CheckForNull;
+ 
 +import java.util.Collection;
 +import java.util.Collections;
 +
+ /**
+  * @since 4.4
+  */
  public class RuleService {
  
 +  private RuleDao dao;
 +  private RuleIndex index;
 +
 +  public RuleService(RuleDao dao, RuleIndex index){
 +    this.dao = dao;
 +    this.index = index;
 +  }
 +
+   @CheckForNull
+   public Rule getByKey(RuleKey key) {
+     return null;
+   }
++
 +  public Collection<Hit> search(RuleQuery query){
 +    return Collections.emptyList();
 +  }
 +
 +  public static Rule toRule(RuleDto ruleDto){
 +    return new RuleImpl();
 +  }
 +
 +  public static Rule toRule(Hit hit){
 +    return new RuleImpl();
 +  }
  }