v0.14-DEV: Remove derivative and unitdirection from exports (#88)

* Remove utilities from exports

* Add back jacobian to exports

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Co-authored-by: Joshua Lampert <51029046+JoshuaLampert@users.noreply.github.com>

Author: mikeingold

src/MeshIntegrals.jl

@@ -9,7 +9,7 @@ import HCubature
 import QuadGK
 
 include("utils.jl")
-export jacobian, derivative, unitdirection
+export jacobian
 
 include("integration_rules.jl")
 export IntegrationRule, GaussKronrod, GaussLegendre, HAdaptiveCubature