Blender Git Loki

bugfix
* scene.object.context and scene.object.selected had broken get_item
funcs so scene.object.context[i] returned the wrong object.
* aligning the view to an object (numpad*key), did not disable the
ortho view grid.
* long standing problem where opening a relative image would fail with
no message. BLI_convertstringcode was returning a path with /../../'s
that need to be cleaned before the path could be read, the path was also
invalid from unix shell so its not a blender path reading problem.