Fix versions and add build number to develop build

.docker/Dockerfile

 FROM rocketchat/base:4
 
-ENV RC_VERSION 0.56.0-develop
+ENV RC_VERSION 0.57.0-develop
 
 MAINTAINER buildmaster@rocket.chat
 

.sandstorm/sandstorm-pkgdef.capnp

@@ -21,7 +21,7 @@ const pkgdef :Spk.PackageDefinition = (
 
 		appVersion = 62,  # Increment this for every release.
 
-		appMarketingVersion = (defaultText = "0.56.0-develop"),
+		appMarketingVersion = (defaultText = "0.57.0-develop"),
 		# Human-readable representation of appVersion. Should match the way you
 		# identify versions of your app in documentation and marketing.
 

.travis/setartname.sh

-export ARTIFACT_NAME="$(meteor npm run version --silent)"
+if [[ $TRAVIS_BRANCH ]]
+ then
+  export ARTIFACT_NAME="$(meteor npm run version --silent).$TRAVIS_BUILD_NUMBER"
+else
+  export ARTIFACT_NAME="$(meteor npm run version --silent)"
+fi

.travis/snap.sh

@@ -17,7 +17,7 @@ elif [[ $TRAVIS_TAG ]]; then
     RC_VERSION=$TRAVIS_TAG
 else
     CHANNEL=edge
-    RC_VERSION=0.56.0-develop
+    RC_VERSION=0.57.0-develop
 fi
 
 echo "Preparing to trigger a snap release for $CHANNEL channel"

package.json

 {
 	"name": "Rocket.Chat",
 	"description": "The Ultimate Open Source WebChat Platform",
-	"version": "0.56.0-develop",
+	"version": "0.57.0-develop",
 	"author": {
 		"name": "Rocket.Chat",
 		"url": "https://rocket.chat/"

packages/rocketchat-lib/rocketchat.info

 {
-	"version": "0.56.0-develop"
+	"version": "0.57.0-develop"
 }