Blender Git Loki

- Blender: added option 'scriptsdir' to Blender.Get();
- small updates to the docs;
- Object: small fix to getMatrix: check during_script() to avoid undesired loops; added old behavior (pre 2.34) as option: .getMatrix('oldlocal');
- tentative fix for bug #1275: scene REDRAW scriptlinks were not being executed (the call to do so was missing):
http://projects.blender.org/tracker/index.php?func=detail&aid=1275&group_id=9&atid=125
added the call in drawview.c, in drawview3dspace(). This causes the scriptlink to be called for each visible view3d, but that's what happens with object redraw scriptlinks, too. Anyway, this is still a test. The place was chosen based on the idea that a scene redraw scriptlink is like an object redraw one, but for all objs in the scene at once.

- Window.Theme: new submodule, to get/set theme options in Blender;
- Added the script save_theme.py (Help menu for now), to save the current theme in Blender as an executable script (currently shown in the Scripts->Misc menu).

There's more work to do for themes, like defining a proper place for them in the interface, adding documentation (for now the added script and the ones it generates can give a pretty good idea of how to use the new module), probably extending themes to support SpaceScript and so on.