Initial version of a program to run other programs in the background,
detached from the current terminal, even if the program itself doesn't
support it.

run-as-daemon detaches completely from the current terminal, starts a
new session as a group leader, opens all output file descriptors to
point to the logging destination, writes its process ID into a PID
file, and runs the given command.

run-as-daemon optionally also supports logging into a file or logging
into a logger(1) instance running as a child of the process executed.
Add autotools.
Allow changing the user ID of the program to be run.
Add a gitignore file.
Add a manual page for run-as-daemon, as the complexity increased a
little.
Declare this to be version 1.1.
Add a license declaration file.
Categorize the gitignore file.