Build Moore without Allen, use LCG nightlies and more
New features:
- Add instructions on how to build Moore without Allen
Fixes:
- Update instructions for building with LCG nightlies
- Fix git ignore of the gdb wrapper
- VSCode: fix nagging "to auto-configure IntelliSense" in non-cpp folders
Improvements:
- Add another example for set substitute-path to gdbinit
- VSCode: recommend rst syntax highlighting extension
Internal changes:
- Minor update to distcc server setup instructions