Added filepaste base

* Added new filepaste.js to handle paste for chrome/ff
* Updated chat ui to intercept paste message
* Updated homeModule to add new handler for paste upload
* Updated index.cshtml to add paste div
merge with dev
Added new upload preview

* Template added for modal dialog
* Style sheets added
* Javascript updated for new upload via dialog
Fixed Chat.ui.filePaste.js

* Removed semicolons
* Changed match to result
* Changed return value
different jshints different messages
fixing formatting per alfhenrik
Merge pull request #800 from Buildstarted/dev

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