1.3
  * Fix config file parsing

1.2
  * Avoid that the program hang sometime due to the fact that XnextEvent is uninterruptible

1.1
  * Better Unicode support
  * Add timeout on how long we can wait for selection
  * Correctly abort the program when no XDisplay is available
  * Avoid re-opening a connection to the X server each time (dirty-fix)
  * Avoid hanging issue

1.0
  * Working version