#155 installation and build problems

* Updated to latest repo
* Moved WWD inclusion to dependency
* Updated README


Signed-off-by: Wim Jongman <wim.jongman@remainsoftware.com>

README.adoc

@@ -7,6 +7,9 @@ image:https://user-images.githubusercontent.com/5540255/60813009-0e148100-a193-1
 
 _Dart and the related logo are trademarks of Google LLC. We are not endorsed by or affiliated with Google LLC._
 
+== Prerequisites
+This project requires a recent version of the https://github.com/eclipse/wildwebdeveloper[Wild Web Developer]. You have to install this first if your Eclipse installation does not already include it.
+
 == Installation
 
 Download and install at least Dart 2.2. from the https://dart.dev/get-dart[Dart download page].

org.eclipse.dartboard.feature/feature.xml

@@ -33,9 +33,9 @@
       [Enter License Description here.]
    </license>
 
-   <includes
-         id="org.eclipse.wildwebdeveloper.feature"
-         version="0.0.0"/>
+   <requires>
+      <import feature="org.eclipse.wildwebdeveloper.feature"/>
+   </requires>
 
    <plugin
          id="org.eclipse.dartboard"

org.eclipse.dartboard.releng/pom.xml

@@ -21,14 +21,20 @@
  <properties>
   <tycho.version>1.3.0</tycho.version>
   <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-  <eclipse-repo.url>http://download.eclipse.org/releases/2019-09</eclipse-repo.url>
+  <eclipse-repo.url>http://download.eclipse.org/releases/2020-03</eclipse-repo.url>
   <textmate-repo.url>http://download.eclipse.org/tm4e/snapshots/</textmate-repo.url>
   <lspe-repo.url>http://download.eclipse.org/lsp4e/releases/latest/</lspe-repo.url>
-  <orbit-repo.url>https://download.eclipse.org/tools/orbit/downloads/drops/S20190726194335/repository/</orbit-repo.url>
+  <wwd-repo.url>http://download.eclipse.org/wildwebdeveloper/snapshots</wwd-repo.url>
+  <orbit-repo.url>https://download.eclipse.org/tools/orbit/downloads/drops/R20191126223242/repository</orbit-repo.url>
   <tycho-extras.version>1.3.0</tycho-extras.version>
  </properties>
 
  <repositories>
+  <repository>
+   <id>wildweb</id>
+   <url>${wwd-repo.url}</url>
+   <layout>p2</layout>
+  </repository>
   <repository>
    <id>eclipse-release</id>
    <url>${eclipse-repo.url}</url>