Removed DotLinker related classes, replaced by those under de.embl.cmci.
Renamed emblcmci.linker.costfuncitons to de.embl.cmci.linker.costfunctions
Replaced emblcmci.linker.AbstractDotLinker to de.embl.cmci.DotLinker
moving related changes in package names, moving documentation as well
Plugin frontend replaced with new DotLinker class (factory pattern)
Swapped AbstractDotLinker to the new DotLinker