v0.1.4 released

This version adds a toolbar, a proper make install target, and speedups. It will probably be the last 0.1.* release (apart from maybe bugfixes), since version 0.2.0 has been in the works for a little while. I'm not satisfied with the current plugin architecture, so 0.2.0 will feature a much more general componant system, where various cipher transforms, algorithms and fitness functions can be mixed and matched at will.