Fix LOAD on action @request.restful()

LOAD didn't work on action decorated with @request.restful() when args and/or vars are passed because the restful method is called with the main "request" object (browser url action) instead of the "other_request" object used by LOAD.
So I have injected the restful method with the good object context.
It's a bit nasty, so if someone knows how to do it better, I'm happy.
avoid multiple cascade paths
references can be long too
fixed partially problem with web2py_filesystem on GAE
support for multiple db filesystems, thanks Luca
typo in try_create_web2py_filesystem
fix custom view delimiters
Merge pull request #487 from ilvalle/grid-fix

fix grid groupby with more than 2 Fields in the expression
Merge pull request #485 from dokime7/patch-5

Fix LOAD on action @request.restful()
Merge pull request #488 from niphlod/fix/scheduler

avoid multiple cascade paths
Merge pull request #489 from jonathannew/master

fix custom view delimiters
added recfile.py
better cache-disk, thanks Leonel
using recfile for sessions for speed
R-2.9.7
R-2.9.7
R-2.9.7
fixed separator in trunk
fix web2py.js with show_if and grid