* version 0.5:
    - add --ui (-u): launch the Curses User Interface for an easy removal
    - add a man page
    - made Twapake and Twacurse perl modules

* version 0.4:
    - add --since (-s): print today installed packages
    - add -c to use with -s: print installed packages since a choosen date
    - change the date format of the twalog file to be more internationnal

* version 0.3:
    - add --remove (-r) to use with -n : remove the last N installed
    packages.
    - use spkg by default else removepkg for removing packages
    - add cron job

* version 0.2:
    - add a --nlpkg (-n) option to use with -i to specify how many
    last packages have to be printed to STDOUT
    - change the output format of the twapake snapshot to be more
    human readable

* version 0.1.0.1:
    - some typos

* version 0.1:
    - first try
    - --logfile (-l) print a twapake snapshot logfile
    - --installed (-i) print a simple sorted list to STDOUT