Release Summary for 4.3.21
  Changes to 4.3 after version 4.3.20
  * Summary
      - As a developer I want the ledgers API to return debits as negative amounts so that I can simply sum them
  * Commits
      - [KAZOO-6046: return negative amounts for debits (#5489)](https://github.com/2600hz/kazoo/commit/230e61a72df32226e741b63730f9eb3d0d33f413) by bitbashing
  * [Use right key for CAVs (#5497)](https://github.com/2600hz/kazoo/commit/d80a003ed56f74e00ba92fa2088829731ee3a659) by James Aimonetti
  * [fixes gcm key and adds fcm (#5494)](https://github.com/2600hz/kazoo/commit/554ca8343d3cd7e598ba83bc70db47b13d1b7adf) by lazedo
  * [add cdrs doc id to view keys to avoid pagination problem (#5492)](https://github.com/2600hz/kazoo/commit/e2154983a3db4126dbae329785ad4aa290630046) by icehess
  * [[4.3] fix port comment author, don&#039;t expose port authority emails (#5487)  * fix port comment author key path    * don&#039;t expose port_authority emails in smptlog    * let&#039;s not save smtp log when sending to port authority for now    * a context was created, but it never used :(](https://github.com/2600hz/kazoo/commit/b47b8f0949037b54858a429411372c2b388ee396) by icehess
  * [PISTON-660: set_accepting_charges to handle dry_run in v1 phone_numbers (#5428)  * PISTON-660: set_accepting_charges to handle dry_run in v1 phone_numbers  * PISTON-660: set_accepting_charges for all v1 API reqs](https://github.com/2600hz/kazoo/commit/a18fcaa4b999705e01bbb5effb58dbdde2f1a7fe) by Daniel Finke
  * [[4.3] HELP-40835: Encode HTTP storage attachments (#5482)  * Provide updates to the HTTP attachment handler    Options to:   - base64 encode the payload   - send as a multipart payload with metadata JSON    Also fixed schema table updates    * Update Jesse schema validator (#5476)    update jesse    fix system configs patternProperty    don&#039;t use cache when validating system configs    apply $ref to zones    exclude id from patternProperties    encode the . when joining parts    log system schema errors    tag jesse 1.5-rc9    use getter_fun with jesse    use jesse tag 1.5-rc11    include value in schema error    use value from schema error    defaultip as binary    tag jesse 1.5-rc12    schemas changes    update json schema test for external    moving system_config checks    tag jesse 1-5-rc13    cleanup errors in oneOf    fix schema external validation test    less noise on logs    show the schema that failed    temp    kapps_config_usage for array with different types    add maintenance view to system_config &amp; system_data    select only pvt_type=config for system configs    update pvt fields in configs api    use kz_doc:pvt_updates    always use kz_json_schema:validate    remove dependencies    * dialyzer cleanup (#5476)    filter out localtime because it&#039;s bad    * export function    * fix dialyzer complaints    * update docs    * update app    * fix app file](https://github.com/2600hz/kazoo/commit/f4266fcf7305b8b0adf1a2c36821695d01853ecf) by James Aimonetti
 -- 2600Hz Official <packages@2600hz.com>  Thu, 07 Feb 2019 05:49:29 PM +0000
