CDBurnerXP 4.2.7.1849

* Added exit codes to command line version (0= no error)
! Fixed the task dialog information icon being shown as question
! Fixed: CDBurnerXP disappears when switching desktops with Dexpot
! Fixed an unnecessary error message "... is an invalid character"
! "0" disc numbers are no longer printed on covers
! Fixed window stae not being restored properly
! Fixed "Not Implemented" error during silent setup on Win7 (InnoSetup 5.3.7)
! Fixed a possible crash after burning an audio disc
! Fixed missing files/folders when adding a second session
! Fixed a crash after burning an ISO file
! Fixed: Wrong speed indicated when burning a second disc