Intermediate work on refactoring startup
Reorganized launch mechanism, added support for non-mpi launching
Identify scripts during exec, reloc the interpreter and fix the cmdline
Hide spindle FDs from client app by intercept close, fstat and using high fd numbers
Merge branch 'launch_seperation' into devel
Fix FD leak when tracing fork operations
Correctly handle arguments in script interpreter lines
Intercept vfork requests, which are incompatible with Spindle
Fix fd leaks in debug logging deamon