pkgs: Correct file remove message
imaging: Fixes #2164 can't generate iso of an image

Dropdown was broken.

This commit fix it
jQuery replacement
jquery: Update
report: initialization of report module
report: Improve python part

Add generic XMLRPC Method to get report datas,
easy way to add report in MMC modules: add your report in a report
directory and that's it.

TODO:
* SQL Schema
* Twisted service to get raw datas of modules
* HTML2PDF integration
* Other ??
report: workaroud for kargs on xmlrpc method
report: main report form
report: improve report form
report: save work
report: Add database support
report: Get disc and ram report datas from database
report: creating xls report from python
report: add Chart generation from pygal library
report: One file to deliver downloadable files

Instead of get_xls_report.php, get_svg_file.php, use of get_file.php to
get xls/pdf reports and png files.
report: Add pygal js library
report: Add PDF report support
report: Add tables into PDF
report: add backuppc table in feed_reporting script