ClimbHome: Change misleading Seed assignment to nil value
This was "Seed = ClimbHome", but ClimbHome was a nil value.
This code still worked as the engine interpreted the nil value as empty string.
But it can be very misleading.
This changeset makes the Seed assignment more explicit by assigning the empty string directly.
The compability has been tested.
# tools/ directory
This directory contains various tools for HW development.
To learn more about each individual tool, open its source file in a text editor,
it often contains a brief comment at the top.
## List of tools (excerpt)
### Files
* `update_locale_files.sh`: Update locale files
* `check_engine_locale_files.sh`: Check the engine locale files for missing translations and problems
* `hwmap2lua.sh`: Convert HWMAP files to Lua code for usage in missions
* `create_dmg.sh`: Generate a .dmg file (relevant for Mac)
* `dmg_pkg_install.sh`: Downloads and install a .dmg from a URL (relevant for Mac)
* `docgen.sh`: Generate QTfrontend documentation with Doxygen (it's not very good)
* `check_translations.sh`: Check most translation files for mistakes and generate a simple progress report
* `find_outdated_engine_translations.sh`: Check for strings in engine translations that MIGHT be outdated
### Directories
* `hwmapconverter`: C++ application to edit HWMAP files in text form
* `pas2c`: Pascal-to-C rewriter. Used when hwengine is built as C application with `BUILD_ENGINE_C=1`
* `old`: Very outdated stuff that needs re-examination and possibly deletion