Added tag removeParentDependency in the doc generation

I added a new tag removeParentDependency in the documentation section. If in a component is specified a documentation line like 

@removeParentDependency <script language="JavaScript" type="text/javascript" src="../biojs/dependencies/jmol-12.0.48/Jmol.js"></script>

and in the parent is specified a dependency like 

@dependency <script language="JavaScript" type="text/javascript" src="../biojs/dependencies/jmol-12.0.48/Jmol.js"></script>

this dependency will NOT reported in the HTML registry file of the component