Integrate Document Viewers into GlobaLeaks Receiver's interface

[fpietrosanti]

This ticket is to Integrate Document Viewers into GlobaLeaks Receiver's interface, in order to remove the dependancy/requirements to startup an office-suite like openoffice or microsoft office to read a word document or an excel spreadsheet.

Once Client Side Encryption/Decryption will be in-place, the GLClient will be able to read the content of the decrypted document from within Javascript.

If the document are based on ODF (Open Document Format), those could be parsed and visualized with ViewerJS http://viewerjs.org/ .

All modern office suite generate by default ODF document.

[fpietrosanti]

Alternative could be to use WebODF that's based on the same ViewerJS code, but it does also support editing http://webodf.org/about/features.html