- (v1, v2, ... ) fby (e1, e2, ...) is translated to
(v1 fby e1, v2 fby e2, ...)
This has made the code even more complex. This will
need to be refactored at some point.
- Added it_gather combinator to create simply
a version of an iterating function using a gather
to combine accumulator values
Completion_mapfold and every_mapfold seems to work
