Morgen M

JOE prompts the user to create the backup dir if it doesn't exist + minor fix to chddir

Backpath is checked to see if it is set in options before the user is

Path's chddir macro is replaced with a function so it can handle HOME ("~").

Some printf statements are removed.

User is prompted at startup to create backup dir if it doesn't exist.

Support for paths with HOME ("~") in them added to mkpath.