Upgrade plugins

[michael-o]

com.google.code.findbugs:jsr305 ....................... 3.0.0 -> 3.0.2
commons-io:commons-io ..................................... 2.2 -> 2.5
org.codehaus.plexus:plexus-container-default ...
                                         1.0-alpha-9-stable-1 -> 1.0-alpha-30
org.codehaus.plexus:plexus-utils .................... 3.0.22 -> 3.0.24