[BLU/Officers] New backup script

[abreauj at gmail.com (John Abreau)]

I set up a test backup script for the calendar database that pushes it
to Amazon S3.
The script names the file based on the date, such that on January 1, the file
will be named, e.g., "BLU-Calendar-Dump.yearly.2012.pgsql"; on the first
of any other month, it will be named, e.g.,
"BLU-Calendar-Dump.monthly.Jul.pgsql",
and on any other day of the year it will be named, e.g.,
"BLU-Calendar-Dump.daily.Mon.pgsql". When the file is uploaded to S3,
it wil replace any existing file of the same name, so at most we'll have
7 dailies, 11 monthlies, and one for each year.


-- 
John Abreau / Executive Director, Boston Linux & Unix
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