Fixed javadoc for release build
<title>SPI: Event Storage</title>
<packages>org.apache.ignite.spi.eventstorage*</packages>
</group>
+ <group>
+ <title>Communication Failure Detection</title>
+ <packages>org.apache.ignite.failure</packages>
+ </group>
<group>
<title>Segmentation Detection</title>
<packages>org.apache.ignite.plugin.segmentation</packages>
