small syntax changes

[Jak Sprats]

I already documented a slight syntax change in ".LIMIT n OFFSET m"
here:
http://groups.google.com/group/redisql-dev/msg/14e992647a494c70

Another one is in the non-relational joins

The Command
SELECT name, phone FROM customer WHERE group_id IN (LRANGE
L_IND_recent_calls 0 5)

is now
SELECT name, phone FROM customer WHERE group_id IN ($LRANGE
L_IND_recent_calls 0 5)

Note the '$' ... this is to differentiate the redis command from the
string "LRANGE L_IND_recent_calls 0 5"

just an update ... I dont think anyone is using these too extensively
at the moment...

I am working at implementing a test suite and hardening the language
and engine ... that will be the concentration in December to get a
release candidate by Jan