2. Move ext-overview_window.js to default but overridable list of extensions (as with other extensions);
3. Allow extensions to avoid problems if failing to return an object (in svgcanvas.js);
4. Support new langReady callback to ensure extension always called when locale info is ready (and always load locale, even English);
5. Move localStorage storing to a new (i18n-ized and available-by-default) storage extension which adds a dialog asking user for whether to store prefs and/or SVG content; $.pref() now falls back to checking defaultPrefs (which may have been expanded at runtime to include URL or storage settings); use new config "forceStorage" to get old (bad) behavior
6. Remove initial cap from "Editor" to reflect singleton nature of object (as compared to JSLint conventions for initial cap constructors);
7. Begin a little JSDoc, clearer grouping of properties/methods; JSLint/clean-up
8. Omit values for lang and iconsize to be successfully auto-detected; 9. Document "save_notice_done" and "export_notice_done" within list of prefs; document "showlayers" and "no_save_warning" as config
10. Add "preventAllURLConfig" and "preventURLContentLoading" config for URL security;
11. Add "lockExtensions" and "noDefaultExtensions" config for URL behavior re: extension loading
12. Document "showGrid", and new "noStorageOnLoad" and "emptyStorageOnDecline" extension-related config
13. Change setConfig to allow a second object with "overwrite" and "allowInitialUserOverride" properties and to behave accordingly (with URL config acting with overwrite=false to act under lower priority given security concern), along with checking "preventAllURLConfig" and "lockExtensions" config.
14. Remove any dupe extensions
15. Strip all path config from URL setting in addition to extPath (imgPath, langPath, jGraduatePath)
16. Support select+checkbox type dialog (used for storage ext.)
17. Ensure clickSelect is public so can be properly used by ext-connector.js
18. Reinstate 'in' checks just to be safe
19. Fix broken linkControlPoints() and addSubPath() functions
20. Fix problem when position returned by extension object was too high (e.g., if too few other extensions were included).
git-svn-id: http://svg-edit.googlecode.com/svn/trunk@2705 eee81c28-f429-11dd-99c0-75d572ba1ddd