Merge branch '0.3.4-fix-aliases-614'
Merge branch '0.3.4-feature-next-unfolded-609'
revert to """ notation for UI attributes docs
Merge branch '0.3.4-cleanup-ui-statics-603'
change cmd repeatability to be command prop and make move cmds non-repeatable
repeat complete command lines

furthermore, the special treatment of individual commands has been removed
fix: fix Command mechanism for move cmds in non-locked state
select commands no longer repeatable
Repeatability class property, mark more cmds as non-repeatable
rm offending line left over from self.repeatable instance property
changed repeatability default to False and reconsider repeatability of all Commands