v0.1.0

Crank now has a (somewhat) working plugin architecture! So far, most of the functionality of v0.0.5 has been split into three plugins, each corresponding to a seperate cryptanalysis 'tool'. Preprocessing, setting the source from the view and user interface niceness are now missing, but are planned to be reenabled soon.

Once the plugin system is polished off, it should be much easier to add new features to Crank, a fair few of which are in the pipeline...