- building with GHOST/SDL now adds the PREFIX
- image.external_edit operator errors out if the filepath isnt set (was annoying and loaded gimp while running tests)
- render check for ortho/panorama combination wasn't working since the flags were not initialized at the time of checking.
- disable panorama button in ortho mode.
- script_load_addons: loads and onloads all addons, error if any cant be enabled or disabled.
- script_load_modules: loads all blenders modules, error if any modules raise an exception or if any modules in the scripts dir are not tested (except for presets and templates).
These are useful because lazy module loading means a module can have an error which isnt raised until the tools used. This gives a way to detect basic errors that used to happen on startup or when enabling the addon.
- move test -> tests, this name is used elsewhere in lib/tests.
- change interface code not to loop on a float value (clang warning), harmless, but with extreme cases an eternal loop would still be possible though unlikely.
