general: static files tweaks

* Adds more informative 404 logging;
* Adds jquery.min.map to Grunt.

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>
batchuploader: template syntax fix
general: syntax fixes
installation: version parsing from dependency links
Merge remote-tracking branch 'adrianp-github/poo' into pu