v1.7.0-beta-4

• support of multi-dimensional index operator (matrix[1,2])

• enable ref through completed paths in partly resolved collections

• support of root level indexing (.[index]) on lists and maps

• support disabeing interpretation of keyed list entries

• keyed list entry stub merging for lists with unique key set, only

• support of deep structures for option -D

• upgate Gg version to 1.18