Use latest gridtables-0.0.3.0

This restores undocumented behavior which allowed to grid tables to have
separator lines that have fewer characters than the cell they delimit.

cabal.project

@@ -2,9 +2,3 @@ packages: pandoc.cabal
 tests: True
 flags: +embed_data_files
 constraints: aeson >= 2.0.1.0
-
-source-repository-package
-  type: git
-  location: https://github.com/tarleb/gridtables
-  tag: 76198add9b404124b3a2fdf137399256a91d337b
-

pandoc.cabal

@@ -492,7 +492,7 @@ library
                  exceptions            >= 0.8      && < 0.11,
                  file-embed            >= 0.0      && < 0.1,
                  filepath              >= 1.1      && < 1.5,
-                 gridtables            >= 0.0.2    && < 0.1,
+                 gridtables            >= 0.0.3    && < 0.1,
                  haddock-library       >= 1.10     && < 1.12,
                  hslua-module-doclayout>= 1.0.4    && < 1.1,
                  hslua-module-path     >= 1.0      && < 1.1,

stack.yaml

@@ -12,6 +12,7 @@ extra-deps:
 - skylighting-format-latex-0.1
 - skylighting-format-blaze-html-0.1
 - emojis-0.1.2
+- gridtables-0.0.3.0
 - lpeg-1.0.3
 - hslua-2.2.1
 - hslua-aeson-2.2.1
@@ -42,8 +43,6 @@ extra-deps:
 - doctemplates-0.10.0.2
 - citeproc-0.8.0.1
 - texmath-0.12.5.2
-- git: https://github.com/tarleb/gridtables
-  commit: 76198add9b404124b3a2fdf137399256a91d337b
 
 ghc-options:
    "$locals": -fhide-source-paths -Wno-missing-home-modules