add stub for the WPS endpoint.
migrate a first valid-but-slim GetCapabilities.
add a check for Request parameter
migrated basic DescribeProcess. No I/O yet.
add REST API for add/remove script (no metadata parsing)
First fonctionnal WPS play based server.

(all changes as a big squashed commit ; I know...)
Merge remote-tracking branch 'gourlaysama/wps' into wps-merge
Merge pull request #10 from agueganno/wps-merge

Wps merge
fix a typo an a missing DSF.
outputs are now always given as reference.
and a higher upload limit for the wps POST.
removed a useless level of indirection.
First commit of map catalog API
Try with scala controller for map catalog
Add main map catalog management
Get workspace list ok
Create Java parts of orbisgis map catalog
List workspaces through the scala API
Fix exception and change the default pixelsize to set 72 dpi as the standard proposes
Add properties to map context