Add delete_file.py

deletes file from the files table.
Need to give full path:
    hostname:/path/to/file
dfm added basefile to ordercols in new_observation
Added PDB.py

This is the lowest-level package for interfacing the PAPER database. It includes several functions for accessing, creating, and updating the
database.
Added add_file.py

add_file.py adds a row to pdb.files.
Added batch_compress.sh

This script runs on a still machine and distributes compression jobs amongst cores in the still.
added better_xrfi.sh

better_xrfi.sh runs the second round of rfi removal.
added compress.sh

This runs the compression algorithm on a core of the still.
added delete_order.py

deletes an entry form pdb.orders, except when that order has status 6-RSYNC.
added correct_and_xrfi.sh

This runs the initial round of RFI removal.
added get_base_dir.py

returns the hostname + directory of a file given in argv[1]. Example:
get_base_dir.py qmaster:/data/zen.XXX.uv ---> qmaster:/data
get_base_host.py

returns the host of the basefile of the argument sys.argv[1]
get_neighbor.py

Consults the database to return the two adjacent files to argv[1]
get_recent_orders.py

returns a space-separated list of files located in pdb.orders;
initDB.py

This deletes and repopulates pdb. This script can serve as the master document in charge of the schema of pdb.
new_observation.py

add rows to pdb.observations, pdb.files, and pdb.orders upon creation of a new observation.
qdaemon

top-level script that sends files to still machines and initializes compression by running batch_compres.sh
record_completion.py

upon sucessful completion of a task, record_completion should be run. This will add a stop_time to the proper row of pdb.history and append stdout
and stderr to history.log
record_failure.py

Upon UNsuccessful completion of a task, record_failure.py should run. This will add entries to pdb.hisory.stop_time and pdb.history.log
record_launch.py

adds a row to pdb.history to indicate a task has begun.
tests/PopulateTestDB.sh

this populates a test database and moves data from a mock-up correlator to a mock-up pot. This should be used as a template for a
send_data_from_corr_to_pot script.