Fixed: folder was still spinning when all children were uploaded
Fixed: using  key in empty tag list was triggering and error
Improved: number of displayed tags in autocomplete is limited. Improved code style.
Fixed: when the autocomplete list was empty, borders were still shown
Improved: using a CouchDB view to get the files to zip instead of checking all files. Close #154
Added: test to check the binary is deleted when a file is deleted. Close #153
Fixed tests: DS client was not authenticated
Fixed: parent's lastModification date was not updated on file creation
Built sources
Removed node 0.8 from travis tests because streams are not well supported in this version.
Merge pull request #159 from jsilvestre/master

Various improvements and bug fixes