Remove leading/trailing whitespaces in config values (#40)

diff --git a/src/config.erl b/src/config.erl
index b87ff34..cebcf57 100644
--- a/src/config.erl
+++ b/src/config.erl
@@ -437,8 +437,9 @@
                         ets:delete(?MODULE, {AccSectionName, ValueName}),
                         {AccSectionName, AccValues};
                     [LineValue | _Rest] ->
+                        LineValueWithoutLeadTrailWS = string:trim(LineValue),
                         {AccSectionName,
-                            [{{AccSectionName, ValueName}, LineValue} | AccValues]}
+                            [{{AccSectionName, ValueName}, LineValueWithoutLeadTrailWS} | AccValues]}
                     end
                 end
             end
diff --git a/src/config_util.erl b/src/config_util.erl
index d0f9ed4..bce22ab 100644
--- a/src/config_util.erl
+++ b/src/config_util.erl
@@ -72,3 +72,4 @@
     fix_path_list(Rest, Acc);
 fix_path_list([Dir | Rest], Acc) ->
     fix_path_list(Rest, [Dir | Acc]).
+