Migration to lib-gwt-svg-0.5.8, gwt-incubator-slider-0.1.2,
vectomatic-gwt-parent-0.3, lib-gwt-file-0.3.4
Added encoding meta
Added fix for firefox reg on viewBox attribute in SVGPatternElement
Disabled 'open URL' feature for security reasons
Changed implementation of 'open from openclipart' for security reasons
[maven-release-plugin] prepare release 0.2.4