ECMS-6558: No preview of Powerpoint (.ppt) or Excel (.xls) files

Fix description:
* Update MIME type for Powerpoint (.ppt, .pps) and Excel (.xls, .xlt) in FileFilter and ThumbnailFilter
* Update MIME type for Powerpoint (.pps) and Excel (.xlt) in mimetypes.properties
SWF-3098 : Create open-doc-in-office branch and update projects versions
ECMS-6518: Open Document in office. Update Webdav server to enable CROS

ECMS-6518: Open Document in Office. Implement add Open... button

ECMS-6518: Update OpenInOfficeConnector

ECMS-6518: Update add button in dms

ECMS-6518: Update file OpenDocument js

ECMS-6518 Update Open... buttons

ECMS-6518: Update button ico UI

EMCS-6518: Update OpenInOfficeConnector CacheControl

ECMS-6518: Open Document Add/update applet

ECMS-6518: Update webdav system ajax library, update Webdav CROS
EMCS-6518: Update Open Document rest - get reousrce bundle - javascript
ECMS-6518: Open document - Update button title in file view
ECMS-6518: Open document in office - Check ActiveX when call MicrosoftOfficeEditDocument function
ECMS-6518: Show Open document when dont have read only permission, Update ranking
EMCS-6518: Open document in office. Show popup when read-only, ranking update
EMCS:6518: Open documnent. File view not avaiable
ECMS-6518: Auto version when open sucessfully by desktop application
ECMS-6518: Open document in office. Move OpenDocumentInOffice.js to correct package
ECMS-6518 rearrange the action list in RightClickPopupMenu and ContextMenu
ECMS-6518: Open document. Ext configuration provider desktop application
ECMS-6518 Rearrange the action list in ActionBar of ListView and IconView
ECMS-6518: Open document. Update filter open-document component
ECMS-6518: Open document make sure javascript loaded
ECMS-6518: Open document. improve DocumentTypeService
ECMS-6518: Move feature to add-on
ECMS-6518: Update moving add-on to feature
ECMS-6518: Update BASIC_01,02