[CHANGE] Added notes on XML escaping;
[CHANGE] renamed function popup to symbol popup;
[CHANGE] clarified show-in-comments documentation;
[CHANGE] Style sheet format - changed wording, made example code highlight as css;
[CHANGE] unified the way Menu Entries, Keyboard Shortcuts, Preferences, Folders are specified; adjusted wording; added additional info about menus/shortcuts;
[ADD] Documentation of ScopeExamples.plist;