Add 1.5.0 release highlights to release log

James Moger

2014-04-11 a57d0c36910a96391b79511224eeb2989f52f6e3

 src/main/java/com/gitblit/manager/IGitblit.java

@@ -31,6 +31,7 @@

public interface IGitblit extends IManager,
                           IRuntimeManager,
                           IPluginManager,
                           INotificationManager,
                           IUserManager,
                           IAuthenticationManager,