Update CHANGES and UPGRADE.txt for 19.1.0

doc/CHANGES-staging/add_mix_option_to_playback.txt

@@ -1,7 +0,0 @@
-Subject: app_playback
-Subject: apps
-
-A new option 'mix' is added to the Playback application that 
-will play by filename and say.conf. It will look on the format of the 
-name, if it is like say format it will play with say.conf if not it 
-will play the file name.

doc/CHANGES-staging/app_queue_logintime.txt

@@ -1,9 +0,0 @@
-Subject: app_queue
-
-Add field to save the time value when a member enter a queue.
-Shows this time in seconds using 'queue show' command and the
-field LoginTime for responses for AMI the events.
-
-The output for the CLI command `queue show` is changed by added a
-extra data field for the information of the time login time for each
-member.

doc/CHANGES-staging/ast_coredumper.txt

@@ -1,23 +0,0 @@
-Subject: ast_coredumper
-
-New options:
- --pid=<asterisk_pid>
-   Allows specification of an Asterisk instance when trying to
-   and the script can't determine it itself.
- --libdir=<system library directory>
-   Allows specification of a non-standard installation directory
-   containing the Asterisk modules.
- --(no-)rename
-   Renames the coredump and the output files with readable
-   timestamps. This is the default.
-Removed unneeded or confusing options:
- --append-coredumps
- --conffile
- --no-default-search
- --tarball-uniqueid
-Changed Variables:
- COREDUMPS is now just "/tmp/core!(*.txt)"
- DATEFORMAT is renamed to DATEOPTS and defaults to '-u +%FT%H-%M-%SZ'
-Changed behavior:
- If you use 'running' or 'RUNNING' you no longer need to specify
- '--no-default-search' to ignore existing coredumps.

doc/CHANGES-staging/chan_iax2_dial.txt

@@ -1,4 +0,0 @@
-Subject: chan_iax2
-
-Both a secret and an outkey may be specified at dial time,
-since encryption is possible with RSA authentication.

doc/CHANGES-staging/tonescan.txt

@@ -1,6 +0,0 @@
-Subject: ToneScan application
-
-A new application, ToneScan, allows for
-synchronous detection of call progress
-signals such as dial tone, busy tone,
-Special Information Tones, and modems.

doc/UPGRADE-staging/stir_shaken_option_split.txt

@@ -1,7 +0,0 @@
-Subject: STIR/SHAKEN
-
-The STIR/SHAKEN configuration option has been split into
-4 different choices: off, attest, verify, and on. Off and
-on behave the same way as before. Attest will only perform
-attestation on the endpoint, and verify will only perform
-verification on the endpoint.