Don't over estimate blowfish

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Use system clipboard

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Swap F and number key maps

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Don't use swap files

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Fast search and replace

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>