Add alert messages.

Gerrit notifications now contain alert messages.
Added dashboard URL to the sonar message
Add new issues to the gerrit notification

 - Removed some of the static methods
updated gitignore
Merge branch 'master' of github.com:deiwin/gerrit-intergation-plugin into deiwin-master

Conflicts:
	pom.xml
	src/main/java/com/pawelmaslyk/gerritintegration4sonar/GerritIntegrationPlugin.java
	src/main/java/com/pawelmaslyk/gerritintegration4sonar/GerritNotifier.java
	src/main/java/com/pawelmaslyk/gerritintegration4sonar/SonarResultEvaluator.java
	src/main/java/com/pawelmaslyk/gerritintegration4sonar/gerrit/GerritCommand.java
	src/main/java/com/pawelmaslyk/gerritintegration4sonar/sonar/SonarAnalysisResult.java
	src/test/java/com/pawelmaslyk/gerritintegration4sonar/SonarResultEvaluatorTest.java
	src/test/java/com/pawelmaslyk/gerritintegration4sonar/gerrit/GerritCommandTest.java
	src/test/java/com/pawelmaslyk/gerritintegration4sonar/sonar/SonarAnalysisStatusTest.java