#191 created the stadtbildserie-report
#191 moved getURLOfLowResPicture() and getFormatOfHighResPicture() from TifferDownload to Sb_stadtbildUtils
#191 created subclass StadtbildserieReportParameterGenerator in Sb_stadtbildserieEditor
#191 added the methods downloadImageForBildnummer() and removeFromImageCache() to Sb_stadtbildUtils and use them in Sb_stadtbildserieEditor
#191 removed showWait(false) from LoadSelectedImageWorker in Sb_stadtbildserieEditor
Merge branch 'feature/191-creation-stadtbildserie-report' into dev