Fixed a few problems:

- some bugs that creeped in when I moved security into its own adapter
- improved some DB code as it doesn't work in Android anyway
- all entities should be serializable (very useful in Android)

demo/build.gradle

@@ -22,8 +22,10 @@ dependencies {
     compile project(':domain')
     compile project(':networking')
     compile project(':repositories')
+    compile project(':security-bc')
     compile project(':wif')
     compile 'org.slf4j:slf4j-simple:1.7.12'
     compile 'args4j:args4j:2.32'
+    compile 'com.h2database:h2:1.4.187'
     testCompile 'junit:junit:4.11'
 }