Remove special version handling during CI build

This commit removes the timestamp generation during CI build
and uses 'BUILD-SNAPSHOT' instead.
diff --git a/build.gradle b/build.gradle
index 206d374..4374dda 100644
--- a/build.gradle
+++ b/build.gradle
@@ -42,22 +42,12 @@
     }
 }
 
-def timestamp = new Date().format('yyyyMMddHHmmss', TimeZone.getTimeZone('GMT'))
-
 defaultTasks 'clean', 'jar', 'build', 'distZip'
 
 def Properties versions = new Properties()
 versions.load(new FileInputStream(project.rootProject.file('gradle.properties')))
 project.ext.props = versions
 
-allprojects() {
-    if (System.properties['ci.build'] == 'true') {
-        version = '3.8.0.D-' + timestamp
-    } else {
-        version = '3.8.0.BUILD-SNAPSHOT'
-    }
-}
-
 ext.appsProjects = [
         project(':apps:org.eclipse.virgo.apps.repository.core'),
         project(':apps:org.eclipse.virgo.apps.repository.web'),
@@ -617,15 +607,12 @@
 
     apply plugin: 'org.eclipse.virgo.bundlor'
 
-    task('addProjectVersionToGradlePropertiesTask', type: Copy) {
+    task('copyGradlePropertiesTask', type: Copy) {
         ext.outputDir = new File(buildDir, 'bundlor-properties')
         inputs.file project.rootProject.file('gradle.properties')
         outputs.dir ext.outputDir
         from project.rootProject.file('gradle.properties')
         into ext.outputDir
-        filter(ReplaceTokens, tokens: [
-                'VIRGO.VERSION': version,
-        ])
     }
 
     task('mergeClassesAndResources', type: Copy, dependsOn: 'compileJava') {
@@ -638,7 +625,7 @@
         into ext.bundlorInputPath
     }
 
-    project.tasks.'bundlor'.dependsOn('addProjectVersionToGradlePropertiesTask', 'mergeClassesAndResources')
+    project.tasks.'bundlor'.dependsOn('copyGradlePropertiesTask', 'mergeClassesAndResources')
 
     bundlor {
         ext.bundlorInputPath = new File(buildDir, 'bundlor-inputPath')
diff --git a/gradle.properties b/gradle.properties
index 2f7890b..a5de31d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,4 @@
-# will be replaced before running the bundlor task
-version = @VIRGO.VERSION@
+version = 3.8.0.BUILD-SNAPSHOT
 
 # Eclipse JDT Core Batch Compiler
 ecjVersion = 4.6.1