bug - Reverse dependency statistics

bug: reverse dependencies per version

Direct reverse dependencies	Indirect reverse dependencies	Total
8	58	66

Version	Reverse dependencies
1	acme-everything-2017.7.10 belka-0.8 buffer-0.5.0.1 buffer-0.5.3 concurrent-buffer-0.1 hasql-0.20 hasql-0.20.0.1 hasql-0.20.1 iri-0.2 iri-0.3 iri-0.3.1 iri-0.3.2 iri-0.3.3 iri-0.3.4 iri-0.3.4.1 potoki-0.6.1 potoki-0.6.2 potoki-0.6.3 potoki-0.6.4 ptr-0.15.2 ptr-0.15.3 ptr-0.15.4 ptr-0.15.5 ptr-0.15.6 ptr-0.15.7 ptr-0.16 ptr-0.16.1 ptr-0.16.2 ptr-0.16.3 ptr-0.16.4 ptr-0.16.5 ptr-0.16.6 ptr-0.16.6.1
1.0.1	acme-everything-2017.7.10 belka-0.8 buffer-0.5.0.1 buffer-0.5.3 concurrent-buffer-0.1 hasql-0.20 hasql-0.20.0.1 hasql-0.20.1 iri-0.2 iri-0.3 iri-0.3.1 iri-0.3.2 iri-0.3.3 iri-0.3.4 iri-0.3.4.1 potoki-0.6.1 potoki-0.6.2 potoki-0.6.3 potoki-0.6.4 ptr-0.15.2 ptr-0.15.3 ptr-0.15.4 ptr-0.15.5 ptr-0.15.6 ptr-0.15.7 ptr-0.16 ptr-0.16.1 ptr-0.16.2 ptr-0.16.3 ptr-0.16.4 ptr-0.16.5 ptr-0.16.6 ptr-0.16.6.1