Assorted changes to address early problem reports and help with investigating them.
- Automatic background generation of plane change burns now depends both on the "Calculate plane change burns" setting and the "Include plane change burns in delta V display" setting (should help with reports of phantom maneuvers appearing during launch)
- Sanity checks added around load/save of settings (should help with #1 and #2)
- Debug output enabled (may be needed to help with #1 and #2)
- Debug output now uses Conditional attribute to improve performance of non-debug build
- Makefile now knows how to generate the xml and mdb files (suppresses a false alarm error message that made multiple 'make' commands necessary when building from scratch)
- DLL assembly version is no longer 0.0.0.0
- KSP-AVC version file added