* All: Update help
* Linux: Installation from self extracting archive accepts install path
* Linux/OSX: Remove absolute path from source packages
* All: remove all dependencies on obsolete XTRKCAD_USE_LAYOUTCONTROL conditional
* Moved tag Release_4_2_4a to changeset 73cf3917555f (from changeset c0c1c81628cd)
* Update release notes
* Added tag Release_4_2_4a for changeset c0c1c81628cd
* Update release notes
* All: New parameter file for Micro Engineering HOn3 Turnouts
* Windows: Fix bug 157 Crash on color change when drawing lines
* All: Updated parameter file for Kato N scale
* All: Fix build problem with block and switchmotor feature
