Cabal revisions of topograph-1

Hackage metadata revisions edit the .cabal file after upload; each diff below is one revision.

-cabal-version:      2.2-name:               topograph-version:            1-synopsis:           Directed acyclic graphs.-category:           Data, Graph+cabal-version:   2.2+name:            topograph+version:         1+x-revision:      1+synopsis:        Directed acyclic graphs.+category:        Data, Graph description:   Directed acyclic graphs can be sorted topographically.   Existence of topographic ordering allows writing many graph algorithms efficiently.   transitive reduction...   Some algorithms even become not-so-hard to implement, like a longest path! -homepage:           https://github.com/phadej/topograph-bug-reports:        https://github.com/phadej/topograph/issues-license:            BSD-3-Clause-license-file:       LICENSE-author:             Oleg Grenrus <oleg.grenrus@iki.fi>-maintainer:         Oleg.Grenrus <oleg.grenrus@iki.fi>-copyright:          (c) 2018-2019 Oleg Grenrus-build-type:         Simple+homepage:        https://github.com/phadej/topograph+bug-reports:     https://github.com/phadej/topograph/issues+license:         BSD-3-Clause+license-file:    LICENSE+author:          Oleg Grenrus <oleg.grenrus@iki.fi>+maintainer:      Oleg.Grenrus <oleg.grenrus@iki.fi>+copyright:       (c) 2018-2019 Oleg Grenrus+build-type:      Simple extra-doc-files:   dag-original.png   dag-closure.png   dag-tree.png  tested-with:-  GHC ==8.6.4 || ==8.4.4 || ==8.2.2 || ==8.0.2 || ==7.10.3 || ==7.8.4 || ==7.6.3+  GHC ==7.6.3+   || ==7.8.4+   || ==7.10.3+   || ==8.0.2+   || ==8.2.2+   || ==8.4.4+   || ==8.6.5+   || ==8.8.1  source-repository head   type:     git library   exposed-modules:  Topograph   build-depends:-    , base          >=4.6     && <4.13+    , base          >=4.6     && <4.14     , base-compat   ^>=0.10.5     , base-orphans  ^>=0.8     , containers    ^>=0.5.0.0 || ^>=0.6.0.1

 cabal-version:   2.2 name:            topograph version:         1-x-revision:      1+x-revision:      2 synopsis:        Directed acyclic graphs. category:        Data, Graph description:   exposed-modules:  Topograph   build-depends:     , base          >=4.6     && <4.14-    , base-compat   ^>=0.10.5+    , base-compat   ^>=0.10.5 || ^>=0.11.0     , base-orphans  ^>=0.8     , containers    ^>=0.5.0.0 || ^>=0.6.0.1     , vector        ^>=0.12