Upgrade to Maven Dependency plugin v2.5

<!-- Dependency plugin discards file permissions so we need to set them back manually. See http://jira.codehaus.org/browse/MDEP-109 -->
<chmod file="${project.build.directory}/dependency/bin/windres" perm="ugo+rx" />
<chmod file="${project.build.directory}/dependency/bin/ld" perm="ugo+rx" />

Release Notes - Maven Dependency Plugin - Version 2.5

** Bug
    * [MDEP-297] - Documentation Problem of an attribute
    * [MDEP-352] - Attributes for ArtifactItems referenced in 
AbstractFromConfigurationMojo.java are incorrect (documentation patch attached)
    * [MDEP-356] - maven dependency plugin should use maven 3 dependency 
resolver, aether

** Improvement
    * [MDEP-286] - Typo in documentation
    * [MDEP-339] - tree mojo doesn't work with maven3
    * [MDEP-344] - Documentation for dependency:tree goal is incorrect
    * [MDEP-357] - use plugins annotations

** Task
    * [MDEP-363] - The plugin should not write debug messages to 'System.out'.