Git.fetch with credentials

Merge pull request #37 from cloudogu/feature/fetch_with_credentials

Adds executeWithCredentials to git.fetch()

Git.setTag() & config SQ integration branch

1.38.0

   1.38.0

Git.checkoutOrCreate()

1.37.0

   1.37.0

Multiple minor features and bugfixes

• #22 fix evaluateExpression on maven wrapper
• #25 SonarCloud with existing additional maven args
• #26 Feature/simpify git push
• #27 added methods to manipulate versions of maven projects
• #28 Added additional git commands: fetch, merge and mergeFastForwardOnly
• #29 SonarQube GitHub plugin deprecated

Removes trailing caret from git.tag

1.35.2

   1.35.2

Avoids required script approval for Maven deployment

1.35.1

1.35.1

Maven: Improved private repo authentication; SonarQube 7.9

• Pull dependencies from private repos
• Pass for multiple repo credentials
• Deploy without passing URL (when specified in pom.xml)
• Maven: Query properties from pom.xml properly, no more error prone grepping.
• SonarQube: Keep behaviour when not using Branch Plugin, also with SonarQube 7.9+ (after removing sonar.branch parameter)