- fixes #119 :  * added autorepair for localstorage (browserstore) where the files list would accidentally get deleted (the files list, not the files)  * the source of the issue was fixed a little way back (was a side effect in autosave)
- fixes #119 :  * added autorepair for localstorage (browserstore) where the files list would accidentally get deleted (the files list, not the files)  * the source of the issue was fixed a little way back (was a side effect in autosave)

- experimented with export to zip file of localstorage projects:
 * added jsZip lib
 * all the basic components work (fetch data, compress, parts of the ui)
 * deactivated for now, as Ui side needs a bit of cleanup, and the size of the generate zip files need to be checked
 * will likely be reused in some shape or the other in the upcomming store system refac

usco/usco-dropbox-store