Removes the INSTANCE column from RDAIRPLAY and RDPANEL tables. This was removed in schema 219 but persists if you create a db from scratch.
This makes rdairplay prompt for a password when exiting and seg faults rdpanel if not removed due to an attempt to insert a record into RDAIRPLAY/RDPANEL without setting a value for INSTANCE which is NOT NULL with no default.
* Removed the 'not null' attribute from the 'LOGS.LINK_DATETIME',
'LOGS.START_DATE' and 'LOGS.END_DATE' fields in the database
[GitHub issue #000121].
* Incremented the database version to 257.
* Added an entry for the Broadcast Tools SRC-16 in
'docs/SWITCHERS.txt'.
* Added a 'CUT_EVENTS' table to the database.
* Added a 'DECK_EVENTS' table to the database.
* Incremented the database version to 256.
* Implemented a 'Cut Event' ['CE'] RML.
* Added a 'Event Carts' section to the Edit Deck dialog in
'rdadmin/edit_deck.cpp' and 'rdadmin/edit_deck.h'.
* Added a 'Cut Log' report in 'lib/export_cutlog.cpp'.
* Added 'DESCRIPTION' and 'OUTCUE' fields to the '_SRT' table
schema.
* Incremented the database version to 255.
* Added a 'CART.USE_WEIGHTING' field to the database.
* Added a 'CUTS.PLAY_ORDER' field to the database.
* Incremented the database version to 254.
* Added a 'Schedule Cuts By' control to the Edit Cart dialog in
'rdlibrary/edit_cart.cpp' and 'rdlibrary/edit_cart.h'.
* Added 'RDCart::useWeighting()' and 'RDCart::setUseWeighting()'
methods in 'lib/rdcart.cpp' and 'lib/rdcart.h'.
* Added 'RDCut::playOrder()' and 'RDCut::setPlayOrder()' methods
in 'lib/rdcut.cpp' and 'lib/rdcut.h'.
* Added a 'RDLIBRARY.READ_ISRC' field to the database.
* Incremented the database version to 245.
* Added 'RDLibraryConf::readIsrc()' and 'RDLibraryConf::setReadIsrc()'
methods in 'lib/rdlibrary_conf.cpp' and 'lib/rdlibrary_conf.h'.
* Added a 'Read ISRCs from CD' control to the 'Edit RDLibrary' dialog
in 'rdadmin/edit_rdlibrary.cpp' and 'rdadmin/edi_rdlibrary.h'.
* Implemented the 'Read ISRCs from CD' option in the full disc
ripper in 'rdlibrary/disk_ripper.cpp'.
* Implemented the 'Read ISRCs from CD' option in the per-track disc
ripper in 'rdlibrary/cdripper.cpp'.
* Modified the definition of the 'JACK_CLIENTS.COMMAND_LINE'
field from 'char(255)' to 'text' in the database.
* Incremented the database version to 244.
* Added a 'STATIONS.HAVE_MP4_DECODE' field to the database.
* Incremented the database version to 243.
* Added a 'Capability::HaveMp4Decode' value to the
'RDStation::Capability' enumeration in 'lib/rdstation.cpp' and
'lib/rdstation.h'.
* Added 'REPORTS.POST_EXPORT_CMD' and 'REPORTS.WIN_POST_EXPORT_CMD'
fields to the database.
* Incremented the database version to 242.
* Added 'RDReport::postExportCommand()' and
'RDReport::setPostExportCommand()' methods in 'lib/rdreport.cpp' and
'lib/rdreport.h'.
* Added 'Linux Post Export Cmd' and 'Windows Post Export Cmd' controls
to the 'Edit Report' dialog in 'rdadmin/edit_report.cpp' and
'rdadmin/edit_report.h'.
* Implemented post export commands in 'lib/rdreport.cpp'.
* Applied a patch from albanpeignier that adds a second scheduler
code for music events.
* Added an 'EVENTS.HAVE_CODE2' field to the database.
* Incremented the database version to 241.
* Added a 'GPIO_EVENTS' table to the database.
* Incremented the database version to 240.
* Implemented GPIO event logging in 'ripcd/local_macros.cpp' and
'ripcd/ripcd.h'.
* Added an 'Events Log' area to RDGpiMon(1) in
'utils/rdgpimon/rdgpimon.cpp' and 'utils/rdgpimon/rdgpimon.h'.
* Added code in rdmaint(1) to purge logged GPIO events in
'utils/rdmaint/rdmaint.cpp' and 'utils/rdmaint/rdmaint.h'.
