bashrc: lastdir updates
bashrc: adding handy aliases
vim: disable some python lint checks
bashrc: adding an orphaned directory check and warning to the prompt
bashrc: adding a cyan lock symbol to the prompt if we are logged in with ssh
bashrc: adding a convenience function to add paths to the path or the python path
bashrc: adding a .shell.init.log file to log the more verbose startup messages that I no longer wish to see every time, but which might be useful for debugging
bashrc: add mark/unmark functions to add/remove paths from cdpaths
bashrc: updated PS1 formatting and comments
bashrc: added "here" command to show pwd and ls