Init: Improve messages when installing/initializing plugins

If there are no plugins included in the WAR file, the message "No
plugins found" is displayed, but if the init is being done on an
existing site and there are already plugins installed, it proceeds
to initialize those plugins. In this case "No plugins found" can be
confusing.

Add separate status messages for the installation and initialization
of plugins.

Change the warning message to "No plugins found to install". Also add
a new line to prevent subsequent messages from being appended on the
same line.

Change-Id: I9d61f223585206be6f7337609737c752f7f598b2
1 file changed