Merge pull request #2914 from riadvice/document-conversion

bigbluebutton-web/build.gradle

bigbluebutton-web/grails-app/conf/bigbluebutton.properties

bigbluebutton-web/grails-app/conf/spring/doc-conversion.xml

...src/java/org/bigbluebutton/presentation/PageAnalyser.java

...n/presentation/handlers/AbstractPageConverterHandler.java

...on/presentation/handlers/Pdf2SwfPageConverterHandler.java

.../bigbluebutton/presentation/imp/Pdf2SwfPageConverter.java

...ton/presentation/imp/PdfToSwfSlidesGenerationService.java