add CM_ExceptionHandling_Formatter_Plain_Log
Trim page keywords and description
Merge pull request #1171 from mariansollmann/issue-1171

Exception metaInfos show up in text
Merge pull request #1150 from njam/issue-1150

Trim meta-description and -keywords
Merge branch 'master' of github.com:cargomedia/CM into cm-services-mongodb