Configure Node and DemoBench to use same version of H2 database.

build.gradle

@@ -29,6 +29,7 @@ buildscript {
     ext.jopt_simple_version = '5.0.2'
     ext.jansi_version = '1.14'
     ext.hibernate_version = '5.2.6.Final'
+    ext.h2_version = '1.4.193'
     ext.dokka_version = '0.9.13'
 
     repositories {

node/build.gradle

@@ -130,7 +130,7 @@ dependencies {
     testCompile "com.pholser:junit-quickcheck-core:$quickcheck_version"
 
     // For H2 database support in persistence
-    compile "com.h2database:h2:1.4.193"
+    compile "com.h2database:h2:$h2_version"
 
     // Exposed: Kotlin SQL library - under evaluation
     // TODO: Upgrade to Exposed 0.7 (has API changes)

tools/demobench/build.gradle

@@ -4,7 +4,6 @@ version "$corda_version"
 buildscript {
     ext.kotlin_version = '1.0.6'
     ext.tornadofx_version = '1.6.0'
-    ext.h2_version = '1.4.193'
     ext.jna_version = '4.1.0'
     ext.purejavacomm_version = '0.0.17'
     ext.guava_version = '14.0.1'