Overview of changes:

 *  Added locking mechanism

    We have to assume that filtering can take long, so if cron is used
    to launch imapdomo and gap is too small, imapdomo instances could
    run over each other, increasing the load even more.

    Now imapdomo drops a lockfile by default, and silently gives up if
    lockfile exists.  This can be disabled by command line switch.

 *  Removed dead code

Overview of changes:

 *  Codebase maintenance

 *  Small improvements

 *  Added proper license

Overview of changes:

 *  imapdomo will now override imapfilter's certificate storage

    Also added CLI option, but default value is
    $IMAPDOMO_HOME/certificates

 *  Empty action will now throe usage error

    ... instead of crashing further down the line.

 *  Path in handler error message has been fixed

 *  Codebase maintenance

Overview of changes:

 *  Fixed paths to look for handlers

 *  Fixed typo in 'die()' call

 *  Added routine debug calls

Overview of changes:

 *  Removed restriction to four valid actions

    User can now define as many actions as they want by simply adding
    handlers for them.

 *  Improved usage messages

 *  Added meaningful error messages

 *  Added arguments to show version

 *  Added 'last' branch to keep latest version

 *  Fixed and cleaned up packaging info

 *  Updated for Shellfu v0.10.*

 *  Codebase maintenance

Fix dependencies, use spaces instead of tabs in .spec file, rename
`imapdomo.spec` to `template.spec`, rename `imapdomo.install` to
`install`, remove unnecessary `override_dh_auto_install`, add URL to
.spec, update Summary, clean up.

Overview of changes:

 *  Simplified configuration

Overview of changes:

 *  Fixed initial errors caused bu migration from mydots
 *  Fixed packaging

Overview of changes:

 *  Added everything