Add plugin (un)install lifecycle methods

James Moger

2014-04-17 cf4004e8d64399f6fc722fcb313eaaae6a65fa20

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

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

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