OO-990: fix export from question pool, fix icon in export wizard from question pool

...java/org/olat/ims/qti/repository/handlers/QTIHandler.java

...rg/olat/ims/qti/repository/handlers/QTISurveyHandler.java

.../org/olat/ims/qti/repository/handlers/QTITestHandler.java

...ava/org/olat/modules/qpool/ui/QuestionListController.java

...lat/modules/qpool/ui/wizard/ExportOverviewController.java

src/main/java/org/olat/repository/handlers/BlogHandler.java

...main/java/org/olat/repository/handlers/CourseHandler.java

...in/java/org/olat/repository/handlers/GlossaryHandler.java

src/main/java/org/olat/repository/handlers/ImsCPHandler.java

...ain/java/org/olat/repository/handlers/PodcastHandler.java

...n/java/org/olat/repository/handlers/PortfolioHandler.java

.../java/org/olat/repository/handlers/RepositoryHandler.java

...ain/java/org/olat/repository/handlers/SCORMCPHandler.java

...ava/org/olat/repository/handlers/SharedFolderHandler.java

...java/org/olat/repository/handlers/WebDocumentHandler.java

src/main/java/org/olat/repository/handlers/WikiHandler.java

...repository/ui/author/CreateRepositoryEntryController.java