File browser SHP simple extension

This commit includes a new module with  a shape files (compressed in zip files) browser in the navigation bar.
Merge pull request #8 from alediator/shp_file_browser

File browser SHP simple extension
NRL fixes

* Add some csv files for testing ingestion
* Some fixes on CSV ingestion (CUD)
* Repair NVDI statistics forcing use static strings for month name (instead GregorianCalendar that return translated name for the month)
* Generate csv statistics in another directory (geobatch configuration)
Merge pull request #9 from alediator/nrl_csv_tests

NRL fixes