Configured for temporary /rails/collaboa location on Alpha. Changed
database schema so 'completed' flag in 'milestones' table is an integer
rather than a boolean because there are comparisons with zero in a few
places in the code, but PostgreSQL strongly types booleans and will not
automatically or cast it or allow it to be explicitly cast. It was
simpler to change the database type to match the code.

Added a local copy of RedCloth since it didn't appear in the right
place (this appears in 'vendor'). Updated the 'syntax' library to use
more explicit 'require' paths - some of the files looked like they were
expecting 'require' to work from the directory in which the file itself
resided, but Ruby/Rails, at least on Alpha, treats them as coming from
the application root at all times.

As housekeeping, deleted spurious log files.