Burr

What's Changed
* Fixes a few issues with persistence by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/236
* Bumps burr version from 0.22.0 to 0.22.1 by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/237


**Full Changelog**: https://github.com/DAGWorks-Inc/burr/compare/burr-0.22.0...burr-0.22.1

What's Changed
* Removes `state` from persister primary key by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/233
* Allow just state update + Parallel tracking by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/225
* Bumps version from 0.21.0 to 0.22.0 by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/234


**Full Changelog**: https://github.com/DAGWorks-Inc/burr/compare/burr-0.21.0...burr-0.22.0

What's Changed
* Updates README to use absolute links by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/223
* Bumps version from 0.20.0 to 0.20.1 by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/224
* Update README.md by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/226
* Fixes expand icon to be consistent by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/227
* Adds GraphDB Conversational Agent example by skrawcz in https://github.com/DAGWorks-Inc/burr/pull/222
* Update graph db README.md by skrawcz in https://github.com/DAGWorks-Inc/burr/pull/229
* Adds field level SERDE control for state objects by skrawcz in https://github.com/DAGWorks-Inc/burr/pull/228
* Update custom serde README.md by skrawcz in https://github.com/DAGWorks-Inc/burr/pull/230
* Adds video to serde docs by skrawcz in https://github.com/DAGWorks-Inc/burr/pull/231
* Bumps version to 0.21.0 by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/232


**Full Changelog**: https://github.com/DAGWorks-Inc/burr/compare/burr-0.20.0...burr-0.21.0

What's Changed
* Adds docs on running burr server in google collab by skrawcz in https://github.com/DAGWorks-Inc/burr/pull/199
* Improves persistence documentation by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/200
* Improves persistence documentation by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/216
* Add video to docs by skrawcz in https://github.com/DAGWorks-Inc/burr/pull/217
* (Fixes 208)Add MongoDB integration persister by NandaniThakur in https://github.com/DAGWorks-Inc/burr/pull/215
* And Nandani Thakur to code contributors by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/219
* Adds modular SERDE approach by skrawcz in https://github.com/DAGWorks-Inc/burr/pull/175
* Updates README to be a bit more descriptive by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/220
* Bumps version from 0.19.1 to 0.20.0 by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/221

New Contributors
* NandaniThakur made their first contribution in https://github.com/DAGWorks-Inc/burr/pull/215

**Full Changelog**: https://github.com/DAGWorks-Inc/burr/compare/burr-0.19.1...burr-0.20.0

What's Changed
* Fixes picking up from null sequence ID by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/198


**Full Changelog**: https://github.com/DAGWorks-Inc/burr/compare/burr-0.19.0...burr-0.19.1

What's Changed
* Adds higher-level conditions functions by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/194
* Fork fixes by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/193
* Adds ability for action to specify its own source code by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/195
* Updates Burr tracking client to safely encode json by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/196
* Bumps burr version from 0.18.0 to 0.19.0 by elijahbenizzy in https://github.com/DAGWorks-Inc/burr/pull/197


**Full Changelog**: https://github.com/DAGWorks-Inc/burr/compare/burr-0.18.0...burr-0.19.0