update for info default logging level, closes #296 (#330)

Author: ccoffrin

REQUIRE

@@ -4,4 +4,4 @@ InfrastructureModels 0.0.6 0.2-
 MathProgBase 0.5.4
 JuMP 0.17 0.19-
 Compat 0.26.0
-Memento 0.7
+Memento 0.8

src/PowerModels.jl

@@ -16,10 +16,7 @@ const LOGGER = getlogger(@__MODULE__)
 
 # Register the module level logger at runtime so that folks can access the logger via `getlogger(PowerModels)`
 # NOTE: If this line is not included then the precompiled `PowerModels.LOGGER` won't be registered at runtime.
-function __init__()
-    Memento.register(LOGGER)
-    Memento.config!(LOGGER, "info")
-end
+__init__() = Memento.register(LOGGER)
 
 include("io/matpower.jl")
 include("io/common.jl")