Make Executor and DatabaseConfig visibility public (#386)

Those classes will be used outside of cuttle

build.sbt

@@ -1,7 +1,7 @@
 val devMode = settingKey[Boolean]("Some build optimization are applied in devMode.")
 val writeClasspath = taskKey[File]("Write the project classpath to a file.")
 
-val VERSION = "0.9.2"
+val VERSION = "0.9.3"
 
 lazy val catsCore = "1.5.0"
 lazy val circe = "0.10.1"

core/src/main/scala/com/criteo/cuttle/Database.scala

@@ -66,7 +66,7 @@ object DatabaseConfig {
   }
 }
 
-private[cuttle] object Database {
+object Database {
 
   implicit val JsonMeta: Meta[Json] = Meta[String].imap(x => parse(x).fold(e => throw e, identity _))(
     x => x.noSpaces

core/src/main/scala/com/criteo/cuttle/Executor.scala

@@ -377,13 +377,13 @@ trait ExecutionPlatform {
   def waiting: Set[Execution[_]]
 }
 
-private[cuttle] object ExecutionPlatform {
+object ExecutionPlatform {
   implicit def fromExecution(implicit e: Execution[_]): Seq[ExecutionPlatform] = e.platforms
   def lookup[E: ClassTag](implicit platforms: Seq[ExecutionPlatform]): Option[E] =
     platforms.find(classTag[E].runtimeClass.isInstance).map(_.asInstanceOf[E])
 }
 
-private[cuttle] object Executor {
+object Executor {
 
   // we save a mapping of ThreadName -> ExecutionStreams to be able to redirect logs comming
   // form different SideEffect (Futures) to the corresponding ExecutionStreams
@@ -394,7 +394,7 @@ private[cuttle] object Executor {
 
 /** An [[Executor]] is responsible to actually execute the [[SideEffect]] functions for the
   * given [[Execution Executions]]. */
-class Executor[S <: Scheduling] private[cuttle] (
+class Executor[S <: Scheduling] (
   val platforms: Seq[ExecutionPlatform],
   xa: XA,
   logger: Logger,