Reorganized keepassc making editor into a package, moving keepassc into
bin/  and updating setup.py.
Added / to trigger search box
Switched keyboard interrupt from 3 to curses.ascii.ETX. This should make future updates easier
Forgot editor package __init__.py
Modified editor to submit entries with the 'Enter' key when only editing
a single line. Also added 'ESC' to back out without saving.
Updated editor with a 'password' mode (noecho characters and turn off
cursor). Updated keepassc to use the editor for password entries.
Minor alteration in Ctrl-C handling