Rename db behaviors ready for namespacing
Rename db classes for NS
Rename DB widgets for NS
Rename file module for NS
Rename net mod for NS
Rename phpr classes for NS
Rename phpr helpers and models for NS
Spaces -> tabs
Update ClassLoader to support namespaces
Add namespacing to core + exceptions
Refit PHPR classes to use namespaces, add validation + pagination classes
Refit PHPR helpers to use NS
Refit PHPR models to use namespaces
(Minor) Context form data takes priority over form serialized data
Update behaviors for NS support
Add NS support to db_helper
Add NS support to DB models + add record lock
Add NS support to file mod
Add NS support to Net mod
Update db classes for use with namespaces + update widgets for namespaces