Remove r5rs and update makefile since Geiser provides docs
Bind geiser-doc-lookup manual to C-c C-h in scheme
Do not eval #lang directive in geiser
Comment and clean up Scheme config
Remove unused import
Wrap geiser-eval-buffer in an 'after' form
Add shortcuts for setting text scale
Provide a command to compile and run the current scm buffer
Move autoloads to top
Split popwin into separate config