partial changes message bubble
Revert "partial changes message bubble"

This reverts commit 84035a9c462c2c45d303e017750103c455743309.
Implementation of a simple dialog for showing information messages
Adaption of dialog and diallog controller for supporting modal dialogs and show/hide minize button
Test and main class
Modifications related pull request made by Angel Serrano
Merge pull request #295 from angeldelblanco/info-dialog

Info dialog