Make <Space> jump to next blank line
Make <Space> jump to next blank line

Jumping to code blocks was language specific (and just re-implemented [{
(for C-style langauges).  Also implements <Nul> as backwards search.

Logic in general is seperated by blank lines in code, and jumping
between logical blocks would be more useful than jumping between
physical code blocks.

BenSimner/dotfiles,BenSimner/dotfiles