adding libraries to the repo
Merge pull request #289 from cycomachead/lib

adding libraries to the repo
Collapse STOP primitives into a single block with a dropdown of options
German translation update for new (migrated) STOP block
Fixed Morphic updateReferences()

how could this go undetected so long? :-)
XML.js: resolved unexpected assignment expressions

conform to the latest JSLint quibbles
validated all source files against the latest JSLint version

and pushed to this date
Revert pull request #295 (xhr-headers)

breaks existing installations
Fixed #292 (pulldowns loose lines when exported as library)
Fixed #291 (readonly custom menus become non-readonly when block is edited)
Added basic floodfill implementation