Fix project.clj and source paths.
Begin on readme.
Add in needed java classes.
Add in signal folder class.
Add in signalfolder ctor.
SignalFolder implements SignalHandler.
Allow caller to return any kind of value.
Fix spelling error in package name.
First pass at registering method.
Keep track of original SignalHandler.
Document and synchronize register method.
Add method to reinit signal handler.
Add method to reinit all signal handlers.
Document reinit functions.
Use sets and native default signalhandlers.
Remove unchecked cast.
Add in method to get a list of callables.
Wrap (Native)SignalHandler as callable.
Document internals.
Add in return param in javadoc for gsfl.