Cap Documenter.jl to 0.19 on Travis

Documenter 0.20 will introduce breaking changes that will invalidate existing make.jl setups. This commit makes sure that automatic Travis builds will not use 0.20 automatically, in order to avoid sudden documentation deployment failures once Documenter 0.20 gets tagged. This commit has been generated by a script.
JuliaRobotics · Oct 17, 2018 · 3866f3f · 3866f3f
1 parent bf94b7e
commit 3866f3f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/docs/Project.toml b/docs/Project.toml
@@ -2,3 +2,6 @@
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 OrdinaryDiffEq = "1dea7af3-3e70-54e6-95c3-0bf5283fa5ed"
 RigidBodyDynamics = "366cf18f-59d5-5db9-a4de-86a9f6786172"
+
+[compat]
+Documenter = "~0.19"