Merge branch '28-applydefine' into 29-rel-news
Merge branch '28-undo-context-chng' into 29-rel-news
Merge branch '26-new-var' into 29-rel-news
Merge branch '26-sym-binding' into 29-rel-news
Merge branch '28-undo-context-chng' into 29-rel-news
Merge branch '26-sym-binding' into 29-rel-news
Merge branch '26-sym-binding' into 29-rel-news
NEWS and INSTALL changes for new minor release
Merge branch '29-rel-news' into 30