comments: modal dialog fix

* Actually removes modal elements on modal close, not just hides them, resulting
in duplication.

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>
Merge remote-tracking branch 'adrianp-github/poo' into pu
jsonalchemy: first release
jsonalchemy: fixes
jsonalchemy: fix for wrappers bson default dict
jsonalchemy: second release
jsonalchemy: fixes
registry: namespace fix
Clouds: skyDrive, Google Drive, Dropbox addition

* Adds support for Google Drive, skyDrive and Dropbox. All cloud
  services are implemented using pyfilesystem as a complete filesystem.
fs: cloudconnector initial port
BibDocFile: model moved to legacy
documents: wip
documents: wip
documents: wip
jsonalchemy: fixes ftypos
documents: create api method