fix for dead url detected by linkcheck maven plugin during others site generation
fix for dead url detected by linkcheck maven plugin during others site generation

example of problem detected by linkcheck plugin https://codeship.com/projects/124310/builds/11383081 scroll till the end of log
tomerc/versions-maven-plugin,mojohaus/versions-maven-plugin,prostagma/versions-maven-plugin,HelloWallet/versions-maven-plugin,mojohaus/versions-maven-plugin,bcalmac/branch-maven-plugin