Add Scala snippets for async stuff

actor.sublime-snippet

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+<snippet>
+	<content><![CDATA[
+val ${1:actor} = Akka.system.actorOf(Props[${2:MyActor}], name = "${1:actor}")
+]]></content>
+	<tabTrigger>actor</tabTrigger>
+	<scope>source.scala</scope>
+</snippet>

async.sublime-snippet

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+<snippet>
+    <content><![CDATA[
+val ${1:promise} = Akka.future { ${2:/** blocking stuff **/} }
+Async {
+    ${1:promise}.map { ${3:result} => Ok( views.html.${4:index}(${3:result}) ) }
+}
+]]></content>
+    <tabTrigger>async</tabTrigger>
+    <scope>source.scala</scope>
+</snippet>
+
+
+
+

callbackenum.sublime-snippet

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+<snippet>
+	<content><![CDATA[
+val ${1:enumerator} = Enumerator.fromCallback{ () =>
+    Promise.timeout( Some( ${2:"stuff"} ), ${3:1000}, TimeUnit.${4:MILLISECONDS} )
+} 
+]]></content>
+	<tabTrigger>callbackenum</tabTrigger>
+	<scope>source.scala</scope>
+</snippet>

pushenum.sublime-snippet

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+<snippet>
+	<content><![CDATA[
+val ${1:hubEnumerator} = Enumerator.imperative[${2:String}]()
+
+val hub = Concurrent.hub[${2:String}]( hubEnumerator )
+  
+def push( ${3:msg}: ${2:String} ) = {
+    hubEnumerator.push( msg )
+}
+// consume with hub.getPatchCord()
+]]></content>
+	<tabTrigger>pushenum</tabTrigger>
+	<scope>source.scala</scope>
+</snippet>
+
+

schedule.sublime-snippet

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+<snippet>
+    <content><![CDATA[
+Akka.system.scheduler.schedule( 0 millisecond, ${1:10} ${2:seconds} ) {
+    $3
+}
+]]></content>
+    <tabTrigger>schedule</tabTrigger>
+    <scope>source.scala</scope>
+</snippet>
+
+

sse.sublime-snippet

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+<snippet>
+	<content><![CDATA[
+def ${1:sse}() = Action { implicit request =>
+    SimpleResult(
+        header = ResponseHeader(
+            OK, 
+            Map(
+                CONTENT_LENGTH -> "-1",
+                CONTENT_TYPE -> "text/event-stream"
+                )
+            ), 
+            ${2:hub}.getPatchCord().through( Enumeratee.map[${3:String}] { msg => "data: " + msg + "\n\n" } 
+        )
+    )
+}
+]]></content>
+	<tabTrigger>sse</tabTrigger>
+	<scope>source.scala</scope>
+</snippet>

websocket.sublime-snippet

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+<snippet>
+	<content><![CDATA[
+def ${1:websocket}() = WebSocket.async[${2:String}] { request =>
+    var out = ${3:hub}.getPatchCord( )
+    var in = Iteratee.foreach[${2:String}] ( _ match {
+        case message : ${2:String} => {
+            hubEnumerator.push( message )
+        }
+    })
+    Promise.pure( ( in, out ) )
+}
+]]></content>
+	<tabTrigger>websocket</tabTrigger>
+	<scope>source.scala</scope>
+</snippet>