Rename elm directory to webui

Now that it's a real project give it a better name

Author: swsnr

.travis.yml

@@ -24,7 +24,7 @@ jobs:
     # Frontend tests
     - stage: test
       install:
-        - cd elm
+        - cd webui
         - yarn install
         - yarn setup
       script:
@@ -66,9 +66,9 @@ cache:
     - $HOME/.ivy2/cache
     # Cache ELM stuff. In particular build-artifacts for tests to avoid needless
     # rebuilds
-    - elm/elm-stuff/packages
-    - elm/tests/elm-stuff/packages
-    - elm/tests/elm-stuff/build-artifacts
+    - webui/elm-stuff/packages
+    - webui/tests/elm-stuff/packages
+    - webui/tests/elm-stuff/build-artifacts
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)

build.sbt

@@ -1,5 +1,5 @@
-lazy val webUi = project
-  .in(file("elm"))
+lazy val webui = project
+  .in(file("webui"))
   .enablePlugins(YarnPlugin)
   .settings(
     name := "Cluster Broccoli Web UI"
@@ -27,7 +27,7 @@ lazy val server = project
     buildInfoPackage := "de.frosner.broccoli.build",
     PlayKeys.playMonitoredFiles ++= (sourceDirectories in (Compile, TwirlKeys.compileTemplates)).value
   )
-  .dependsOn(webUi)
+  .dependsOn(webui)
 
 lazy val root = project
   .in(file("."))
@@ -64,4 +64,4 @@ lazy val root = project
         parallelExecution in Test := false
       ))
   )
-  .aggregate(webUi, server)
+  .aggregate(webui, server)